This document analyzes soil properties and crop yields at the Oke-Oyi irrigation scheme in Nigeria between 2015-2017. Physical analysis found the soil texture was sandy loam with moderate moisture retention. Chemical analysis found the soil was moderately to slightly acidic with moderate organic carbon and available phosphorus. Crop yields of rice, maize, pepper, garden egg and watermelon decreased between 2015-2017, likely due to increasing exchangeable bases deteriorating soil quality over time under irrigation. Proper soil monitoring is needed to prevent further yield declines.
Effects of Irrigation Practices on Some Soil Chemical Properties on OMI Irrig...IJERA Editor
Irrigation practices have been observed to impact scheme soil properties and other parameters negatively. These could be as a result of irrigation water quality, method of application and nature of scheme soil. This study was therefore conducted to study the effects of irrigation practices on the soils of Omi irrigation scheme Kogi state, Nigeria after 13years of operation. Soil samples were taken at depths 0 – 20 cm (A1), 20 – 80 cm (A2) and 80 – 120 cm (A3) from two operating lands (OL); OL 5 and OL 18 of the study area. The samples were analysed for chemical parameters (pH, CEC, ESP, Mg2+, Ca2+, OM, and OC). The soil pH which was in the neutral range (pH=6.65 to 7.00) at inception of scheme, has become slightly acidic (pH=6.53 to 6.60). Cation exchange capacity (CEC) levels have also increased from 10cmol+kg-1 to 35cmol+kg-1. While Organic matter (OM) and Organic carbon (OC) also have marked increase in their levels (baseline as 0.93 to 1.08; for year 2013 as 9.52 to 9.79). Generally, the analysis indicated a need for proper monitoring of the scheme soil to prevent further deterioration.
An efficient incentive of Nitrate and Fluoride on Organic highland cropping s...IOSR Journals
Abstract: Exerting necessitated concentrations of Nitrate and fluoride to the organic highland cropping
systems is a vital management technique. All the chemical elements of the earth’s crust occur in widely differing
omnipresent concentrations, due to their different nuclear chemical formation and geochemical history. The use
of biological nitrogen and fluoride inputs complicates its balancing act due to dandier uncertainty in inorganic
Nitrogen and Fluoride availability. The growers to strike maintain Nitrogen provisioning to support crop
growth and retention of limit pollution followed by fluoride associated soils. Due to various activities of the man
in domestic field, agriculture area and industrial establishment the environment around us consisting soil, water
and air gets polluted. Fluoride inexhaustible concentrations forbid the growth of crop even though nitrates
reposit in the cultivated soils. The purpose of this project was to establish kinetics when nitro fluorides
associated in the highland soils to different crop systems towards environmental pollutions. Cordia Africana
and alfalfa are the plants which make soil to get enrichment of Nitrates and deescalate of concentrations of
fluorides from cultivated soils through its decomposition. This entire study went on its conventionally tilled
crops followed by Cordia Africana and alfalfa stems and leaf particles. Surface soil nitrate concentrations were
measured weekly, biweekly by volumetric analysis and nitrate leaching was estimated from tension Lysimeters
which were buried at the soil bedrock interface. Subsequently by using Orion 720A fluoride ion meter, deescalated
concentrations of fluorides have been measured. The demonstrated concentrations of Soil in NO3
variables, coefficients of variations from the mean concentrations across all samplings have been recorded
sporadically. The total area of the soil bed was maintained the same PH values until project was completed by
weigh Lysimeters. The timing of elevated Nitrate concentrations (10-15PPM) and the concentrations of fluoride
in deeper soil water corresponds with fallow periods. These dynamics will assist growers in adapting the timing
management operations and reduces nitrate departures.
Effect application of sea sand, coconut and banana coir on the growth and yie...NurdinUng
The research was aimed to study effect application of sea sand (SS), coconut coir (CC) and banana coir (BC) on the growth and yield of rice (Oryza sativa L.) planted at Ustic Endoaquert soil. The pot experiment was carried out using a factorial design with 3 factors. The first factor was SS consisted of three levels i.e.: 0%, 25%, and 50%. The second and third factors were CC and BC, each consisted of three levels i.e.: 0, 10, and 20 Mg ha-1. Application of SS and BC significantly increased leaf length where the highest increasing percentage was 16.47% which was achieved at 25% SS application. Their effect on leaf numbers and tiller numbers were relatively not similar pattern where leaf number only increased about 65.52% by BC application, while tiller numbers only increased about 10.77% by SS application. Furthermore, the application of CC and BC significantly increased panicle numbers to 29.53% and 29.05%, respectively compared to control. All ameliorants significantly increased panicle numbers, but the best was CC with the increasing up to 46.49% at 20 Mg ha-1 CC compared to SS or BC application. However, only coconut coir significantly increased the rice grain numbers.
Agricultural depletion of soil nutrient in arable landAlexander Decker
This academic article summarizes a study on the depletion of soil nutrients in agricultural land over time. The study analyzed soil samples from different arable areas in Bhopal, India twice over a one year period. The initial samples had higher concentrations of most nutrients measured compared to the later samples, indicating depletion occurred. Factors like soil pH, erosion, temperature fluctuations, and lack of organic carbon management can limit nutrient uptake by plants and availability over time. Integrated plant nutrient management that uses fertilizers, manures, and agronomic practices is recommended to sustain agricultural productivity and food supply.
This document is a doctoral thesis submitted by Massimiliano De Antoni Migliorati to Queensland University of Technology in March 2015. The thesis examines strategies to reduce nitrous oxide (N2O) emissions while supporting cereal production in subtropical regions characterized by Oxisol soils. The three key objectives are: 1) Evaluate the use of a nitrification inhibitor (DMPP) to limit N2O emissions and increase yields compared to conventional urea fertilizer. 2) Evaluate if introducing a legume phase can reduce synthetic N fertilizer use and N2O emissions in the cereal phase. 3) Use modeling to test the hypotheses and assess sustainability under different conditions. The thesis presents results indicating potential to limit N2
Does fertilization practices increase residual nitrate nitrogen in soil irrig...IJEAB
Treated wastewater has significantly improved DM yield compared to ground water. The form of nitrogen provided by the water was determinant in drawing yields. Irrigation with ground water (where nitrogen is as nitrate) induces a faster migration of nitrogen at depth. In contrast, using treated wastewater (where nitrogen is as ammonium), resulting in a relative distribution of the remaining nitric smaller in the lower profile and therefore higher in the surface, especially after the second year (2010). In addition, the relative distribution of nitrates in the soil surface is even more important in the presence of organic manure. All happens as if a certain amount of ammonium provided by treated wastewater is retained in the organic compounds of manure. Yields were significantly lower in irrigation with treated wastewater in the second year and especially when fertilization was given in additional. If the soil can be used for storage of the nitrogen supplied by the treated wastewater during the first year of irrigation (24 kg N-NO3/ha before irrigation to 115 kg N-NO3/ha after irrigation), to the second year the capacity drops (to 64 N-NO3/ha) and a significant increase in nitrate leaching occurs. Therefore, unlike the contribution of manure that seems enrich the topsoil nitrate nitrogen, at least during the first campaign, mineral fertilization unreasoning causes faster migration of nitrogen at depth.
IRJET- Assessment of Farmers’ Perception Towards the Adoption of Soil and Wat...IRJET Journal
This document summarizes a study on farmers' perceptions of soil and water conservation practices and soil quality in Kechabira Woreda, Ethiopia. Key findings include:
1) The most commonly used indigenous soil conservation practices by farmers were application of manure, indigenous tree planting, and crop rotation. Modern practices like grass strips and fanaya juu terraces were also widely adopted.
2) Farmers' adoption of conservation practices was influenced by demographic and farm characteristics.
3) Soil samples from plots using conservation practices for over 5 years had significantly higher moisture, organic carbon, nutrients compared to untreated plots, especially at lower slopes.
Effects of Irrigation Practices on Some Soil Chemical Properties on OMI Irrig...IJERA Editor
Irrigation practices have been observed to impact scheme soil properties and other parameters negatively. These could be as a result of irrigation water quality, method of application and nature of scheme soil. This study was therefore conducted to study the effects of irrigation practices on the soils of Omi irrigation scheme Kogi state, Nigeria after 13years of operation. Soil samples were taken at depths 0 – 20 cm (A1), 20 – 80 cm (A2) and 80 – 120 cm (A3) from two operating lands (OL); OL 5 and OL 18 of the study area. The samples were analysed for chemical parameters (pH, CEC, ESP, Mg2+, Ca2+, OM, and OC). The soil pH which was in the neutral range (pH=6.65 to 7.00) at inception of scheme, has become slightly acidic (pH=6.53 to 6.60). Cation exchange capacity (CEC) levels have also increased from 10cmol+kg-1 to 35cmol+kg-1. While Organic matter (OM) and Organic carbon (OC) also have marked increase in their levels (baseline as 0.93 to 1.08; for year 2013 as 9.52 to 9.79). Generally, the analysis indicated a need for proper monitoring of the scheme soil to prevent further deterioration.
An efficient incentive of Nitrate and Fluoride on Organic highland cropping s...IOSR Journals
Abstract: Exerting necessitated concentrations of Nitrate and fluoride to the organic highland cropping
systems is a vital management technique. All the chemical elements of the earth’s crust occur in widely differing
omnipresent concentrations, due to their different nuclear chemical formation and geochemical history. The use
of biological nitrogen and fluoride inputs complicates its balancing act due to dandier uncertainty in inorganic
Nitrogen and Fluoride availability. The growers to strike maintain Nitrogen provisioning to support crop
growth and retention of limit pollution followed by fluoride associated soils. Due to various activities of the man
in domestic field, agriculture area and industrial establishment the environment around us consisting soil, water
and air gets polluted. Fluoride inexhaustible concentrations forbid the growth of crop even though nitrates
reposit in the cultivated soils. The purpose of this project was to establish kinetics when nitro fluorides
associated in the highland soils to different crop systems towards environmental pollutions. Cordia Africana
and alfalfa are the plants which make soil to get enrichment of Nitrates and deescalate of concentrations of
fluorides from cultivated soils through its decomposition. This entire study went on its conventionally tilled
crops followed by Cordia Africana and alfalfa stems and leaf particles. Surface soil nitrate concentrations were
measured weekly, biweekly by volumetric analysis and nitrate leaching was estimated from tension Lysimeters
which were buried at the soil bedrock interface. Subsequently by using Orion 720A fluoride ion meter, deescalated
concentrations of fluorides have been measured. The demonstrated concentrations of Soil in NO3
variables, coefficients of variations from the mean concentrations across all samplings have been recorded
sporadically. The total area of the soil bed was maintained the same PH values until project was completed by
weigh Lysimeters. The timing of elevated Nitrate concentrations (10-15PPM) and the concentrations of fluoride
in deeper soil water corresponds with fallow periods. These dynamics will assist growers in adapting the timing
management operations and reduces nitrate departures.
Effect application of sea sand, coconut and banana coir on the growth and yie...NurdinUng
The research was aimed to study effect application of sea sand (SS), coconut coir (CC) and banana coir (BC) on the growth and yield of rice (Oryza sativa L.) planted at Ustic Endoaquert soil. The pot experiment was carried out using a factorial design with 3 factors. The first factor was SS consisted of three levels i.e.: 0%, 25%, and 50%. The second and third factors were CC and BC, each consisted of three levels i.e.: 0, 10, and 20 Mg ha-1. Application of SS and BC significantly increased leaf length where the highest increasing percentage was 16.47% which was achieved at 25% SS application. Their effect on leaf numbers and tiller numbers were relatively not similar pattern where leaf number only increased about 65.52% by BC application, while tiller numbers only increased about 10.77% by SS application. Furthermore, the application of CC and BC significantly increased panicle numbers to 29.53% and 29.05%, respectively compared to control. All ameliorants significantly increased panicle numbers, but the best was CC with the increasing up to 46.49% at 20 Mg ha-1 CC compared to SS or BC application. However, only coconut coir significantly increased the rice grain numbers.
Agricultural depletion of soil nutrient in arable landAlexander Decker
This academic article summarizes a study on the depletion of soil nutrients in agricultural land over time. The study analyzed soil samples from different arable areas in Bhopal, India twice over a one year period. The initial samples had higher concentrations of most nutrients measured compared to the later samples, indicating depletion occurred. Factors like soil pH, erosion, temperature fluctuations, and lack of organic carbon management can limit nutrient uptake by plants and availability over time. Integrated plant nutrient management that uses fertilizers, manures, and agronomic practices is recommended to sustain agricultural productivity and food supply.
This document is a doctoral thesis submitted by Massimiliano De Antoni Migliorati to Queensland University of Technology in March 2015. The thesis examines strategies to reduce nitrous oxide (N2O) emissions while supporting cereal production in subtropical regions characterized by Oxisol soils. The three key objectives are: 1) Evaluate the use of a nitrification inhibitor (DMPP) to limit N2O emissions and increase yields compared to conventional urea fertilizer. 2) Evaluate if introducing a legume phase can reduce synthetic N fertilizer use and N2O emissions in the cereal phase. 3) Use modeling to test the hypotheses and assess sustainability under different conditions. The thesis presents results indicating potential to limit N2
Does fertilization practices increase residual nitrate nitrogen in soil irrig...IJEAB
Treated wastewater has significantly improved DM yield compared to ground water. The form of nitrogen provided by the water was determinant in drawing yields. Irrigation with ground water (where nitrogen is as nitrate) induces a faster migration of nitrogen at depth. In contrast, using treated wastewater (where nitrogen is as ammonium), resulting in a relative distribution of the remaining nitric smaller in the lower profile and therefore higher in the surface, especially after the second year (2010). In addition, the relative distribution of nitrates in the soil surface is even more important in the presence of organic manure. All happens as if a certain amount of ammonium provided by treated wastewater is retained in the organic compounds of manure. Yields were significantly lower in irrigation with treated wastewater in the second year and especially when fertilization was given in additional. If the soil can be used for storage of the nitrogen supplied by the treated wastewater during the first year of irrigation (24 kg N-NO3/ha before irrigation to 115 kg N-NO3/ha after irrigation), to the second year the capacity drops (to 64 N-NO3/ha) and a significant increase in nitrate leaching occurs. Therefore, unlike the contribution of manure that seems enrich the topsoil nitrate nitrogen, at least during the first campaign, mineral fertilization unreasoning causes faster migration of nitrogen at depth.
IRJET- Assessment of Farmers’ Perception Towards the Adoption of Soil and Wat...IRJET Journal
This document summarizes a study on farmers' perceptions of soil and water conservation practices and soil quality in Kechabira Woreda, Ethiopia. Key findings include:
1) The most commonly used indigenous soil conservation practices by farmers were application of manure, indigenous tree planting, and crop rotation. Modern practices like grass strips and fanaya juu terraces were also widely adopted.
2) Farmers' adoption of conservation practices was influenced by demographic and farm characteristics.
3) Soil samples from plots using conservation practices for over 5 years had significantly higher moisture, organic carbon, nutrients compared to untreated plots, especially at lower slopes.
Quality of Groundwater around Rewa-Gurh Region, Rewa District Madhya Pradesh ...IJMER
International Journal of Modern Engineering Research (IJMER) is Peer reviewed, online Journal. It serves as an international archival forum of scholarly research related to engineering and science education.
Soybean and Corn crop response to enhanced efficiency phosphate fertilizerAI Publications
Many agricultural soils worldwide in their natural state are deficient in phosphorous (P). As P is vital for all living beings, as P fertilizers are manufactured from non-renewable resources and as P fertilizer efficiency is generally low, we need to improve the P use efficiency and minimize P fertilizers usage to ensure the future sustainability of our cropping systems. Enhanced-efficiency fertilizers use is one of the strategies to increase P fertilizer efficiency, but there is no consensus on the effectiveness of this type of technology. The need to increase the efficiency of P fertilization and the lack of information about enhanced efficiency P fertilizer justifies studies to evaluate the performance of this kind of fertilizer. Experiments were carried out in greenhouse and field conditions to investigate the effect of P fertilizer coated with anionic polymers (Policote) on corn and soybean crop development and yield, and agronomic P use efficiency. Greenhouse experiments were conducted with corn crop, while field trials were carried out with soybean crop. Greater increases in plant growth parameters, crop yield, soil P content, and fertilizer efficiency use were observed with Policote coated fertilizer than with conventional P fertilizer. The observed changes in P use efficiency among P fertilizers increased our understanding of enhanced efficiency fertilizers. The obtained results demonstrated that Policote coated fertilizer can be used as an enhanced efficiency fertilizer. Results show that Policote coated fertilizer is a more efficient way to deliver required phosphorous to plants than conventional ones.
Establishment of Critical level of Zinc in soil and soybean crop grown on Ver...iosrjce
A pot culture experiment was conducted for establishment critical limit of zinc in soil and soybean
crop at Department of Soil Science and Agricultural Chemistry, Marathwada Agricultural University, Parbhani
during Kharif 2010 with objective to establish critical limit of zinc in soil and for soybean crop as well as to
study the effect of zinc application on growth, yield and uptake of nutrients in soybean crop. The experimental
soil was alkaline in nature, electrical conductivity of the soil was in safe limit for crop growth. The organic
carbon status was low to medium and soil was moderately calcareous in nature.
Soybean positively responded for application of Zn @ 7.5 kg Zn ha-1
as well as 10 kg Zn ha-1
, both treatments
were equally effective for improving growth and yield attributes. The concentration of Zn as well as its uptake
was increased with increasing levels of zinc application. Soil available nitrogen, phosphorus and potassium
have shown positive balance at physiological maturity of the crop and increased dose of zinc helped to restore
the zinc status of soil. The critical limit of zinc in soil and soybean crop was established as 0.95 mg kg -1
and
45.00 mg kg -1
, respectively. These critical limits may be utilized for separating zinc responsive and non responsive soybean crop in Vertisol
CARBON STOCK AND CARBON SEQUESTRATION POTENTIAL UNDER DIFFERENT LAND USE OF I...RJSREBCRAN
This document provides an overview of a presentation on carbon stock and sequestration potential under different land uses in Indian soils. It discusses definitions of soil organic carbon sequestration and stock. It also reviews studies on soil organic carbon distribution and pools in India. Specific data is given on soil organic carbon concentration in major Indian city soils and benchmark soils. Comparisons of organic carbon stocks are made between soil orders and land uses in India and worldwide.
Agricultural drainage from waterlogged soils and indian experiencesSuyog Khose
This document discusses agricultural drainage from waterlogged soils in India. It notes that while irrigation development increased post-independence, drainage systems were often neglected, leading to issues like waterlogging and soil salinization. It estimates that 4.528 million hectares and 7.006 million hectares of land in India are affected by waterlogging and salinity respectively. The document outlines different types of drainage systems that can be used to reclaim degraded lands, including surface drainage, subsurface drainage, mole drainage and vertical drainage. Subsurface drainage using perforated underground pipes is commonly used.
IRJET- Valuation of Irrigation Water at Shagordari, Jashore, BangladeshIRJET Journal
This document summarizes a study that evaluated the quality of groundwater in Shagordari, Jashore, Bangladesh for irrigation and drinking purposes. Water samples from 40 deep tube wells in the area were tested for various chemical and physical parameters. Spatial analysis using GIS mapping showed that groundwater quality was best in the middle and south middle areas, while the north and parts of the east had poorer quality due to higher salinity, dissolved solids, and hardness. Parameters like electrical conductivity, sodium adsorption ratio, magnesium/calcium ratio, and irrigation water quality index indicated some areas were unsuitable for irrigation. The study developed maps of these parameters and concluded that groundwater quality monitoring and management is needed to ensure sustainable use of
IRJET- Adsorption Kinetics of Heavy Metal in the catchment soils of Swarn...IRJET Journal
The document analyzes the adsorption kinetics of heavy metals in catchment soils of the Swarna River Basin in Udupi District, Karnataka. Key findings from the study include:
1. Batch experiments and atomic absorption spectroscopy were used to analyze concentrations of copper, cobalt, and nickel in soil samples from 29 locations across three seasons.
2. Basic parameter analysis found soil pH to be acidic, ranging from 2-4, likely due to leaching of calcium and magnesium ions by heavy rainfall.
3. Adsorption of heavy metals decreased from pre-monsoon to monsoon to post-monsoon seasons, as soil pores occupied by rainwater left fewer sites available for adsorption.
The document discusses nitrogen use in U.S. agriculture and policy approaches to improve nitrogen management. It finds that 35% of cropland meets best management practices for nitrogen application rate, timing, and method, but improvements are needed for remaining land. Corn receives the most nitrogen fertilizer and is least likely to meet all three best practices. Policy options to incentivize better management include government cost-share programs, including nitrogen management in farm program requirements, and emissions markets. Restored wetlands and vegetative filter strips can supplement on-field improvements by filtering reactive nitrogen from runoff and groundwater. Effective policies require understanding factors influencing fertilizer use and potential environmental tradeoffs of different nitrogen issues.
Effects of drip irrigation frequency and depth on soil hydro-physical propert...inventionjournals
International Journal of Engineering and Science Invention (IJESI) is an international journal intended for professionals and researchers in all fields of computer science and electronics. IJESI publishes research articles and reviews within the whole field Engineering Science and Technology, new teaching methods, assessment, validation and the impact of new technologies and it will continue to provide information on the latest trends and developments in this ever-expanding subject. The publications of papers are selected through double peer reviewed to ensure originality, relevance, and readability. The articles published in our journal can be accessed online.
Land & Water Quality and Biodiversity Monitoring w/r to EIAgunwant_joshi
This document discusses the status of India's soil environment and issues of soil degradation. It notes that nearly 147 million hectares of soil in India are degraded. The main causes of degradation are water erosion (94 million ha), acidification (16 million ha), flooding (14 million ha), salinity (6 million ha), and desertification (7 million ha). Activities like deforestation, mining, urbanization, waste disposal, and chemical pollution from agriculture are contributing to losses of soil organic matter and nutrients. The document advocates for mitigation measures like erosion control structures, plantation, bioremediation, changes in cropping patterns, and promotion of organic farming to address the problem of soil degradation.
Influence of Human Urine on Rice Grain Yield (Orzya sativa L.) and Selected S...IJEAB
An experiment was carried out at Abakaliki Southeastern Nigeria to study the influence of human urine on rice grain yield, selected soil physical and chemical properties in Abakaliki southeastern Nigeria in 2014 and 2015. The experiment was arranged in randomized complete block designed (RCBD) with human urine applied in the following rates: A = Control (no application of treatment); B = 2 kilolitres/ha; C = 4 kilolitres/ha and D = 6 kilolitres/ha. Treatments were not applied in 2015 to test the residual effect. In general, human urine improved rice grain yield, bulk density, total porosity, hydraulic conductivity, moisture content, organic carbon, total nitrogen, C/N ratio, pH, available phosphorus and exchangeable bases in 2014 it was applied and the following year as residual effect. An increase in the rate of urine application also resulted to an increase in rice grain yield and higher improvement in soil properties studied.
This document provides an overview of nitrogen behavior in agricultural soils and effective nitrogen management strategies. It discusses the nitrogen cycle and pathways by which nitrogen is added to soils, including atmospheric precipitation, biological nitrogen fixation, and soil organic matter decomposition. Specific nitrogen contributions from legumes and manures are estimated. The document also examines soil nitrogen conversions such as ammonia volatilization, nitrification, and denitrification. It emphasizes the importance of proper assessment of crop needs, timing and placement of nitrogen applications, and use of complimentary nutrients and nitrification inhibitors for effective nitrogen management.
This document summarizes a study on the effect of nutrients on rice plants grown in sodic soils. The study was conducted over two years on a farmer's field in India. Soil tests found the soil to be low in organic carbon, nitrogen, phosphorus, sulfur, zinc and manganese, and medium in potassium. Rice yields and plant nutrient concentrations increased with the addition of nitrogen, phosphorus, potassium, sulfur, zinc and manganese fertilizers. The highest yield increases came from nitrogen application, followed by phosphorus and potassium. Cumulatively, the added nutrients increased yields by over 80% compared to the control plot with no added nutrients. The soil was found to be deficient in all the nutrients tested. Satisfactory
Improving Fruit Quality and Nutritional Value of Deglet Nour dates subjected ...Agriculture Journal IJOEAR
A field study was carried out during the two consecutive years (2015-2016) in the region of Biskra, southern east of Algeria on date palms of Deglet-Nour variety, grown in a salty environment. To study the combined effect of salinity and phospho-potassium fertilization on the quality and nutritional value of dates, two sites of different salinity, occupied by 54 date palms variety Deglet-Nour has been selected. The palms were fertilized by receiving three doses of potassium (0, 2 and 3 kg / palm) as potassium sulphate K 2 SO 4 (50%) combined with three levels of phosphorus (0, 1 and 2 kg / palm) as superphosphate (TSP 46%). The results revealed that applying 2 kg of potassium/palm in an excessively salty environment and 3 kg/palm in a low or unsalted environment associated to 1 kg of phosphorus in the two different cases of salinity of the two sites S1 and S2 improving the fruit traits.
First meeting of the Editorial Board of the Soil Atlas of Asia, 12 - 15 March 2018, Quezon City, Philippines. The preparation of the Soil Atlas of Asia is sponsored by Joint Research Centre of the European Commission (JRC-EC).
OEU20110501 Final Activity Report BiosaforJeannette Hoek
This document provides a final activity report on the BIOSAFOR project, which evaluated the potential for producing renewable energy from salt-affected wastelands using biosaline agroforestry systems. The project developed databases on salt-tolerant tree species suitable for different types of salt-affected areas. It conducted research on biosaline agriculture and forestry through field trials in multiple countries. For India, the project created a model linking soil, water, climate and tree requirement data to calculate woody biomass production potentials for different species and areas. The report concludes with recommendations for further technology development and policy measures to support productive use of salt-affected lands.
Impact of the use of inorganic fertilizers to the soils of the ebonyi state a...Alexander Decker
The study assessed the impact of long-term inorganic fertilizer use on soils in Ebonyi State, Nigeria. Soil samples from 15 farms with over 20 years of inorganic fertilizer application were analyzed. The results showed that the soils were very strongly to strongly acidic, with very high exchangeable acidity. Nutrient levels like nitrogen, phosphorus, and potassium were moderate to low. Long-term inorganic fertilizer use contributed to soil acidification and nutrient depletion. It was recommended to apply lime and use organic manures along with inorganic fertilizers to correct soil fertility issues and improve agricultural productivity in a sustainable manner.
Groundwater Status in India:
- 54% of India's groundwater wells are declining and 21 major cities are expected to run out of groundwater by 2020, impacting over 600 million people with water stress.
- Water quality is poor with approximately 70% contaminated, placing India 120th out of 122 countries on water quality. Key contaminants affecting many districts include fluoride, nitrate, arsenic, and heavy metals.
- While per capita water availability has declined from 5,177 cubic meters per year in 1951 to 1,869 cubic meters in 2011, groundwater irrigation has increased, now supplying over 60% of irrigation nationwide. However, widespread overexploitation and poor management threaten groundwater sustainability.
Quantification of Heavy Metals using Contamination and Pollution Index in Sel...IJEAB
Many sites in urban cities are used for dumping of domestic, industrial and municipal wastes because of high human population density in the area. Most often, people use these dumpsites for growing of crops without knowing the level of heavy metal contamination in soils of these areas. This study evaluated the quantification and contamination level of heavy metals in some refuse dumpsites in communities of the State Nigeria. Three replicate soil samples were collected from the dumpsites and at 20 m away from the non - dumpsite which do not receive sewage water within the root zone of 0 – 40 cm depth using soil auger sampler. Samples were analysed for soil properties and heavy metal concentrations using standard methods. The concentrations of the studied heavy metals (Cu, Pb, Zn and Cd) were compared with the permissible limits of other countries. Results showed that in the three studied locations, soil pH at dumpsites were 40 .6%, 39.4% and 38.9% higher than the values in the control sites while soil organic carbon were higher in the dumpsites by 50.1%, 31.3% and 41.1% as compared to the control sites. Cu concentrations at the three locations were below the standard limits of United Kingdom, European Union (EU), USA and WHO. The concentrations of the studied heavy metals passed the contamination stage and therefore will pose negative effect on plant and soil environment. Use of the dumpsite for crop cultivation or as compost materials should be avoided and construction of shallow wells near these areas should be discouraged.
Impact of Abattoir Wastes on the Physicochemical Properties of Soils within P...theijes
The impact of abattoir wastes on the physicochemical properties of soils within Port Harcourt metropolis has been investigated. Soil samples from twelve different abattoir locations within Port Harcourt metropolis labeled ABP1 to ABP12 were analyzed for possible contamination of physicochemical and heavy metal parameters. Theywere equally compared with a control site of no abattoir activities (ABPc) as well as WHO and FEPA standard set limits. The soil temperature which was carried out in-situ gave an average value of 30.00C. The mean values of the physicochemical parameters revealed that pH and electrical conductivity had average values of 7.00 and 78.33µScm-1 respectively. Chloride, salinity and nitrates had average values of 335.00mgKg-1 , 601.74mgKg-1 and 39.30mgKg-1 respectively. These values were slightly higher than both the control site as well as the standard set limit byWHO. Thus, indicating the possibility of contamination/pollution from the abattoir activities. However, average the values for the phosphates, sulphates and heavy metals (Pb, Cu, Cd, Ni, Cr) though slightly higher than those of the control site (ABPc) were all within the standard set limits by WHO and FEPA. Statistical correlation equally showed positive correlations between chloride and salinity (1.0000), phosphate and cadmium (0.9939), conductivity and iron (0.9485). Also, negative correlations were equally observed between sulphate/chloride and sulphate/salinity with same values of -0.9192. Therefore abattoir activities within Port Harcourt metropolis imparts negatively on the arable soil and measures should be put in place for proper control.
Quality of Groundwater around Rewa-Gurh Region, Rewa District Madhya Pradesh ...IJMER
International Journal of Modern Engineering Research (IJMER) is Peer reviewed, online Journal. It serves as an international archival forum of scholarly research related to engineering and science education.
Soybean and Corn crop response to enhanced efficiency phosphate fertilizerAI Publications
Many agricultural soils worldwide in their natural state are deficient in phosphorous (P). As P is vital for all living beings, as P fertilizers are manufactured from non-renewable resources and as P fertilizer efficiency is generally low, we need to improve the P use efficiency and minimize P fertilizers usage to ensure the future sustainability of our cropping systems. Enhanced-efficiency fertilizers use is one of the strategies to increase P fertilizer efficiency, but there is no consensus on the effectiveness of this type of technology. The need to increase the efficiency of P fertilization and the lack of information about enhanced efficiency P fertilizer justifies studies to evaluate the performance of this kind of fertilizer. Experiments were carried out in greenhouse and field conditions to investigate the effect of P fertilizer coated with anionic polymers (Policote) on corn and soybean crop development and yield, and agronomic P use efficiency. Greenhouse experiments were conducted with corn crop, while field trials were carried out with soybean crop. Greater increases in plant growth parameters, crop yield, soil P content, and fertilizer efficiency use were observed with Policote coated fertilizer than with conventional P fertilizer. The observed changes in P use efficiency among P fertilizers increased our understanding of enhanced efficiency fertilizers. The obtained results demonstrated that Policote coated fertilizer can be used as an enhanced efficiency fertilizer. Results show that Policote coated fertilizer is a more efficient way to deliver required phosphorous to plants than conventional ones.
Establishment of Critical level of Zinc in soil and soybean crop grown on Ver...iosrjce
A pot culture experiment was conducted for establishment critical limit of zinc in soil and soybean
crop at Department of Soil Science and Agricultural Chemistry, Marathwada Agricultural University, Parbhani
during Kharif 2010 with objective to establish critical limit of zinc in soil and for soybean crop as well as to
study the effect of zinc application on growth, yield and uptake of nutrients in soybean crop. The experimental
soil was alkaline in nature, electrical conductivity of the soil was in safe limit for crop growth. The organic
carbon status was low to medium and soil was moderately calcareous in nature.
Soybean positively responded for application of Zn @ 7.5 kg Zn ha-1
as well as 10 kg Zn ha-1
, both treatments
were equally effective for improving growth and yield attributes. The concentration of Zn as well as its uptake
was increased with increasing levels of zinc application. Soil available nitrogen, phosphorus and potassium
have shown positive balance at physiological maturity of the crop and increased dose of zinc helped to restore
the zinc status of soil. The critical limit of zinc in soil and soybean crop was established as 0.95 mg kg -1
and
45.00 mg kg -1
, respectively. These critical limits may be utilized for separating zinc responsive and non responsive soybean crop in Vertisol
CARBON STOCK AND CARBON SEQUESTRATION POTENTIAL UNDER DIFFERENT LAND USE OF I...RJSREBCRAN
This document provides an overview of a presentation on carbon stock and sequestration potential under different land uses in Indian soils. It discusses definitions of soil organic carbon sequestration and stock. It also reviews studies on soil organic carbon distribution and pools in India. Specific data is given on soil organic carbon concentration in major Indian city soils and benchmark soils. Comparisons of organic carbon stocks are made between soil orders and land uses in India and worldwide.
Agricultural drainage from waterlogged soils and indian experiencesSuyog Khose
This document discusses agricultural drainage from waterlogged soils in India. It notes that while irrigation development increased post-independence, drainage systems were often neglected, leading to issues like waterlogging and soil salinization. It estimates that 4.528 million hectares and 7.006 million hectares of land in India are affected by waterlogging and salinity respectively. The document outlines different types of drainage systems that can be used to reclaim degraded lands, including surface drainage, subsurface drainage, mole drainage and vertical drainage. Subsurface drainage using perforated underground pipes is commonly used.
IRJET- Valuation of Irrigation Water at Shagordari, Jashore, BangladeshIRJET Journal
This document summarizes a study that evaluated the quality of groundwater in Shagordari, Jashore, Bangladesh for irrigation and drinking purposes. Water samples from 40 deep tube wells in the area were tested for various chemical and physical parameters. Spatial analysis using GIS mapping showed that groundwater quality was best in the middle and south middle areas, while the north and parts of the east had poorer quality due to higher salinity, dissolved solids, and hardness. Parameters like electrical conductivity, sodium adsorption ratio, magnesium/calcium ratio, and irrigation water quality index indicated some areas were unsuitable for irrigation. The study developed maps of these parameters and concluded that groundwater quality monitoring and management is needed to ensure sustainable use of
IRJET- Adsorption Kinetics of Heavy Metal in the catchment soils of Swarn...IRJET Journal
The document analyzes the adsorption kinetics of heavy metals in catchment soils of the Swarna River Basin in Udupi District, Karnataka. Key findings from the study include:
1. Batch experiments and atomic absorption spectroscopy were used to analyze concentrations of copper, cobalt, and nickel in soil samples from 29 locations across three seasons.
2. Basic parameter analysis found soil pH to be acidic, ranging from 2-4, likely due to leaching of calcium and magnesium ions by heavy rainfall.
3. Adsorption of heavy metals decreased from pre-monsoon to monsoon to post-monsoon seasons, as soil pores occupied by rainwater left fewer sites available for adsorption.
The document discusses nitrogen use in U.S. agriculture and policy approaches to improve nitrogen management. It finds that 35% of cropland meets best management practices for nitrogen application rate, timing, and method, but improvements are needed for remaining land. Corn receives the most nitrogen fertilizer and is least likely to meet all three best practices. Policy options to incentivize better management include government cost-share programs, including nitrogen management in farm program requirements, and emissions markets. Restored wetlands and vegetative filter strips can supplement on-field improvements by filtering reactive nitrogen from runoff and groundwater. Effective policies require understanding factors influencing fertilizer use and potential environmental tradeoffs of different nitrogen issues.
Effects of drip irrigation frequency and depth on soil hydro-physical propert...inventionjournals
International Journal of Engineering and Science Invention (IJESI) is an international journal intended for professionals and researchers in all fields of computer science and electronics. IJESI publishes research articles and reviews within the whole field Engineering Science and Technology, new teaching methods, assessment, validation and the impact of new technologies and it will continue to provide information on the latest trends and developments in this ever-expanding subject. The publications of papers are selected through double peer reviewed to ensure originality, relevance, and readability. The articles published in our journal can be accessed online.
Land & Water Quality and Biodiversity Monitoring w/r to EIAgunwant_joshi
This document discusses the status of India's soil environment and issues of soil degradation. It notes that nearly 147 million hectares of soil in India are degraded. The main causes of degradation are water erosion (94 million ha), acidification (16 million ha), flooding (14 million ha), salinity (6 million ha), and desertification (7 million ha). Activities like deforestation, mining, urbanization, waste disposal, and chemical pollution from agriculture are contributing to losses of soil organic matter and nutrients. The document advocates for mitigation measures like erosion control structures, plantation, bioremediation, changes in cropping patterns, and promotion of organic farming to address the problem of soil degradation.
Influence of Human Urine on Rice Grain Yield (Orzya sativa L.) and Selected S...IJEAB
An experiment was carried out at Abakaliki Southeastern Nigeria to study the influence of human urine on rice grain yield, selected soil physical and chemical properties in Abakaliki southeastern Nigeria in 2014 and 2015. The experiment was arranged in randomized complete block designed (RCBD) with human urine applied in the following rates: A = Control (no application of treatment); B = 2 kilolitres/ha; C = 4 kilolitres/ha and D = 6 kilolitres/ha. Treatments were not applied in 2015 to test the residual effect. In general, human urine improved rice grain yield, bulk density, total porosity, hydraulic conductivity, moisture content, organic carbon, total nitrogen, C/N ratio, pH, available phosphorus and exchangeable bases in 2014 it was applied and the following year as residual effect. An increase in the rate of urine application also resulted to an increase in rice grain yield and higher improvement in soil properties studied.
This document provides an overview of nitrogen behavior in agricultural soils and effective nitrogen management strategies. It discusses the nitrogen cycle and pathways by which nitrogen is added to soils, including atmospheric precipitation, biological nitrogen fixation, and soil organic matter decomposition. Specific nitrogen contributions from legumes and manures are estimated. The document also examines soil nitrogen conversions such as ammonia volatilization, nitrification, and denitrification. It emphasizes the importance of proper assessment of crop needs, timing and placement of nitrogen applications, and use of complimentary nutrients and nitrification inhibitors for effective nitrogen management.
This document summarizes a study on the effect of nutrients on rice plants grown in sodic soils. The study was conducted over two years on a farmer's field in India. Soil tests found the soil to be low in organic carbon, nitrogen, phosphorus, sulfur, zinc and manganese, and medium in potassium. Rice yields and plant nutrient concentrations increased with the addition of nitrogen, phosphorus, potassium, sulfur, zinc and manganese fertilizers. The highest yield increases came from nitrogen application, followed by phosphorus and potassium. Cumulatively, the added nutrients increased yields by over 80% compared to the control plot with no added nutrients. The soil was found to be deficient in all the nutrients tested. Satisfactory
Improving Fruit Quality and Nutritional Value of Deglet Nour dates subjected ...Agriculture Journal IJOEAR
A field study was carried out during the two consecutive years (2015-2016) in the region of Biskra, southern east of Algeria on date palms of Deglet-Nour variety, grown in a salty environment. To study the combined effect of salinity and phospho-potassium fertilization on the quality and nutritional value of dates, two sites of different salinity, occupied by 54 date palms variety Deglet-Nour has been selected. The palms were fertilized by receiving three doses of potassium (0, 2 and 3 kg / palm) as potassium sulphate K 2 SO 4 (50%) combined with three levels of phosphorus (0, 1 and 2 kg / palm) as superphosphate (TSP 46%). The results revealed that applying 2 kg of potassium/palm in an excessively salty environment and 3 kg/palm in a low or unsalted environment associated to 1 kg of phosphorus in the two different cases of salinity of the two sites S1 and S2 improving the fruit traits.
First meeting of the Editorial Board of the Soil Atlas of Asia, 12 - 15 March 2018, Quezon City, Philippines. The preparation of the Soil Atlas of Asia is sponsored by Joint Research Centre of the European Commission (JRC-EC).
OEU20110501 Final Activity Report BiosaforJeannette Hoek
This document provides a final activity report on the BIOSAFOR project, which evaluated the potential for producing renewable energy from salt-affected wastelands using biosaline agroforestry systems. The project developed databases on salt-tolerant tree species suitable for different types of salt-affected areas. It conducted research on biosaline agriculture and forestry through field trials in multiple countries. For India, the project created a model linking soil, water, climate and tree requirement data to calculate woody biomass production potentials for different species and areas. The report concludes with recommendations for further technology development and policy measures to support productive use of salt-affected lands.
Impact of the use of inorganic fertilizers to the soils of the ebonyi state a...Alexander Decker
The study assessed the impact of long-term inorganic fertilizer use on soils in Ebonyi State, Nigeria. Soil samples from 15 farms with over 20 years of inorganic fertilizer application were analyzed. The results showed that the soils were very strongly to strongly acidic, with very high exchangeable acidity. Nutrient levels like nitrogen, phosphorus, and potassium were moderate to low. Long-term inorganic fertilizer use contributed to soil acidification and nutrient depletion. It was recommended to apply lime and use organic manures along with inorganic fertilizers to correct soil fertility issues and improve agricultural productivity in a sustainable manner.
Groundwater Status in India:
- 54% of India's groundwater wells are declining and 21 major cities are expected to run out of groundwater by 2020, impacting over 600 million people with water stress.
- Water quality is poor with approximately 70% contaminated, placing India 120th out of 122 countries on water quality. Key contaminants affecting many districts include fluoride, nitrate, arsenic, and heavy metals.
- While per capita water availability has declined from 5,177 cubic meters per year in 1951 to 1,869 cubic meters in 2011, groundwater irrigation has increased, now supplying over 60% of irrigation nationwide. However, widespread overexploitation and poor management threaten groundwater sustainability.
Quantification of Heavy Metals using Contamination and Pollution Index in Sel...IJEAB
Many sites in urban cities are used for dumping of domestic, industrial and municipal wastes because of high human population density in the area. Most often, people use these dumpsites for growing of crops without knowing the level of heavy metal contamination in soils of these areas. This study evaluated the quantification and contamination level of heavy metals in some refuse dumpsites in communities of the State Nigeria. Three replicate soil samples were collected from the dumpsites and at 20 m away from the non - dumpsite which do not receive sewage water within the root zone of 0 – 40 cm depth using soil auger sampler. Samples were analysed for soil properties and heavy metal concentrations using standard methods. The concentrations of the studied heavy metals (Cu, Pb, Zn and Cd) were compared with the permissible limits of other countries. Results showed that in the three studied locations, soil pH at dumpsites were 40 .6%, 39.4% and 38.9% higher than the values in the control sites while soil organic carbon were higher in the dumpsites by 50.1%, 31.3% and 41.1% as compared to the control sites. Cu concentrations at the three locations were below the standard limits of United Kingdom, European Union (EU), USA and WHO. The concentrations of the studied heavy metals passed the contamination stage and therefore will pose negative effect on plant and soil environment. Use of the dumpsite for crop cultivation or as compost materials should be avoided and construction of shallow wells near these areas should be discouraged.
Impact of Abattoir Wastes on the Physicochemical Properties of Soils within P...theijes
The impact of abattoir wastes on the physicochemical properties of soils within Port Harcourt metropolis has been investigated. Soil samples from twelve different abattoir locations within Port Harcourt metropolis labeled ABP1 to ABP12 were analyzed for possible contamination of physicochemical and heavy metal parameters. Theywere equally compared with a control site of no abattoir activities (ABPc) as well as WHO and FEPA standard set limits. The soil temperature which was carried out in-situ gave an average value of 30.00C. The mean values of the physicochemical parameters revealed that pH and electrical conductivity had average values of 7.00 and 78.33µScm-1 respectively. Chloride, salinity and nitrates had average values of 335.00mgKg-1 , 601.74mgKg-1 and 39.30mgKg-1 respectively. These values were slightly higher than both the control site as well as the standard set limit byWHO. Thus, indicating the possibility of contamination/pollution from the abattoir activities. However, average the values for the phosphates, sulphates and heavy metals (Pb, Cu, Cd, Ni, Cr) though slightly higher than those of the control site (ABPc) were all within the standard set limits by WHO and FEPA. Statistical correlation equally showed positive correlations between chloride and salinity (1.0000), phosphate and cadmium (0.9939), conductivity and iron (0.9485). Also, negative correlations were equally observed between sulphate/chloride and sulphate/salinity with same values of -0.9192. Therefore abattoir activities within Port Harcourt metropolis imparts negatively on the arable soil and measures should be put in place for proper control.
An economic analysis of precision application of lime at reduced ratesAlexander Decker
This document summarizes a study that analyzed the economic benefits of applying lime at reduced rates to soils in Zambia. The study used yield and financial data from on-station trials comparing plots with different lime and fertilizer application rates. The results showed that applying lime at reduced rates of 100-500kg/ha led to higher yields than plots without lime. Financial analysis found marginal returns over 150% when lime was combined with compost. Therefore, applying lime even at reduced rates can significantly increase profits for smallholder farmers in Zambia through yield gains.
Cadmium and lead hazards as occurring with their speciations in periurbain ag...Premier Publishers
Environment pollution hazard awareness is required for less industrialized countries which are faced with increasing periurban agriculture practice however. Lead (Pb) and Cadmium (Cd) were characterized around Abidjan city (Bingerville, Port-Bouët and Yopougon) in soil, perched ground water and vegetable crops (Hibiscus and sweet potato). Total amounts and speciations of metals were determined respectively. The sites were mainly differing with pH observed at Yopougon characterized by highest soil content of Pb (40 mg kg-1). In contrast with the low soil contents of metals, plant contaminations were observed in the root for Cd and Pb at Yopougon and Port-Bouët sites respectively with variance involving above and below ground organs as specific contamination of Hibiscus or sweet potato. Skeleton fractions as exchangeable (F1) and carbonate bound (F2) were characterizing these contaminations although additional fraction as oxide bound (F3) Cd and organic (F4) Pb were required respectively for effectiveness. The non-polluted perched groundwater pH, Eh, temperature and O2 concentration were likely concerned by these fractions availability beside that of residual fraction (F5) of Cd. Enhance isomorphic substitution of anionic Pb forms transforming F2 into F5 and the cationic substitutions between Cd and Pb were suggested for pollution management.
The properties and potentials of soils of Liman Katagum (LK) in Bauchi State were assessed for both rainfed and irrigated crop production. Six soil mapping units were identified. The soils were moderately deep to very deep (93 – 163cm), except for exposed petroplinthite in some part of land unit LK 2. Soil pH ranged between 4.7 and 8.4, and was rated moderately acid to moderately alkaline. The soils were characterized by moderate fertility status. Improved management techniques were suggested for sustainable use of the land to improve farmers’ economy in the area. Assessment of the land potential showed that land units LK 3, LK 5 and LK6 (47.5%; 9.975ha) were moderately suitable (S2) and LK 1 and LK 4 (27.5%; 5.775ha) marginally suitable (S3) for rainfed crop production. For irrigated crop production, land units; LK 3, LK 4, LK 5 and LK 6 (51.43%; 10.8ha) were potentially moderately suitable (S2) and Land unit LK 1 (23.57%; 4.95ha) marginally suitable (S3). Land unit LK 2 constituting 25% (5.25ha) of the land was not potentially suitable (N2) for either rainfed or irrigated agriculture.
Biochar is produced from biomass through pyrolysis and can improve soil properties when used as a soil amendment. It increases soil carbon storage, cation exchange capacity, nutrient retention, and water holding capacity while decreasing bulk density. Case studies show biochar improving soil pH, organic matter, available nutrients, and crop yields. The quality and effects of biochar depend on feedstock and production temperature. Combining biochar with other organic amendments or reduced inorganic fertilizer provides the best results for soil amelioration and sustainable agriculture.
Liming leads to high bean and maize yield on a strongly acid tea soil | IJAAR...Innspub Net
This study investigated the effects of different liming rates on maize and bean yields in strongly acidic tea-growing soils in Kenya. The soils had pH values below 5, indicating aluminum toxicity and deficiencies in important nutrients. Liming raised the soil pH and increased both maize and bean yields significantly compared to the unlimed control. The maximum yields for both crops were achieved at a liming rate of 6 t/ha, which raised the soil pH to around 5.5. Higher liming rates did not further increase yields and started to decrease them, possibly due to nutrient imbalances. The results show that liming is an effective and inexpensive way to reclaim strongly acidic tea soils and improve food crop production.
A Study on Effect of Treated effluent Irrigation on Agricultural and Geotechn...IRJET Journal
The document summarizes a study on the effect of treated effluent irrigation on agricultural and geotechnical properties of soil near a sewage treatment plant. Samples of treated effluent and soil were collected from three sites at different distances from the plant and analyzed. The results showed that long-term irrigation with treated effluent increased soil pH, nitrogen, phosphorus and potassium levels, and decreased permeability. While it did not significantly impact geotechnical properties, it did lead to soil sickness over time and decreased crop yields due to accumulation of nutrients and organic matter in the soil.
Environmental burden of heavy metal contamination levels (zikai wang 的冲突副本 20...Alexander Decker
The document analyzes heavy metal contamination levels in soils from two sites under sewage irrigation and a control site in Geriyo catchment, Nigeria. Heavy metal concentrations were highest at Site II, followed by Site I, with the control site having the lowest levels. Zinc, copper, cadmium, chromium and lead concentrations exceeded international standards at Site II. An index was used to assess contamination/pollution levels, finding the soils ranged from slight to excessive heavy metal pollution. Remediation through leaching and liming was recommended due to risks of negative effects on plants and groundwater contamination.
Environmental burden of heavy metal contamination levelsAlexander Decker
The document analyzes heavy metal contamination levels in soils from two sites using sewage irrigation and a control site in Nigeria. At the sewage irrigation sites, concentrations of metals like Fe, Zn, Mn, Cu, Cd, Cr, and Pb were higher than the control site. The highest concentrations were found at Site II, with levels of Cu, Cd, Cr, and Pb exceeding international standards. Based on a contamination/pollution index, soils ranged from slight pollution to excessive heavy metal pollution, posing risks to plants and groundwater. Remediation through leaching and liming was recommended to reduce metal levels and ensure sustainable agriculture.
Influence of sokoto phosphate rock on some soil properties and the growth and...Alexander Decker
This document summarizes a study that examined the influence of Sokoto Phosphate Rock (SPR) on soil properties, growth, and yield of cowpea varieties in Sudan savanna of Nigeria. The study found that SPR application enhanced soil nutrient availability and the performance of cowpea varieties. SPR increased soil phosphorus, plant tissue phosphorus, soil nitrogen, and plant tissue nitrogen. SPR also increased plant height, number of branches, and dry matter yield of cowpea in a dose-dependent manner. The highest cowpea growth and yield was observed with the application of 75kg/ha of SPR. However, nutrient levels were not very high possibly due to the acidic soil conditions. Overall, the study
Soil fertility analysis for rice production in the lowland areas of Diplahan,...Open Access Research Paper
The most important practice that contributes to rice production is nutrient management. However, if the nutrient plant required is insufficient, low production is unavoidable. Thus, this study was carried out to determine the soil fertility status of lowland areas in the municipality of Diplahan. Soil samples from each sampling site were collected in rice farms using a composite random soil sampling moving in a zigzag pattern. A depth of 0- 15cm soil samples were collected from 15 – 30 different places in 1-5 hectares. An air-drying procedure was done before it was carried to the laboratory for final testing. Soil samples were analyzed for pH, organic carbon, organic matter, nitrogen, phosphorous, and potassium following the BSWM (Bureau of Soils and Water Management) procedures. Furthermore, a soil fertility map was outlined through ArcGIS software by plotting local coordinates in Google Map. Results showed that the areas in 10 selected barangays in the municipality have moderate soil acidity, with a pH level that falls below the desirable range of 5.5 – 7.0 but no lower than 4.5. According to the results of the soil organic carbon analysis, all barangays have insufficient SOC. Only four barangays have the optimal soil organic matter content for lowland rice production. The study also revealed that only two (2) barangays receive an adequate amount of nitrogen, while the rest are considered deficient. Phosphorous-rich soils were found in two (2) barangays; the five (5) barangays have a medium content; and the remaining three (3) barangays have a low content. Lastly, no barangay in the municipality obtains an adequate amount of exchangeable potassium ranging from 82-246 ppm. Problem of insufficient nutrient requirements for rice crop production is widespread in the municipality.
Assessment of Zinc and Copper Status of Fadama Soils In Borgu Local Governmen...Agriculture Journal IJOEAR
The document summarizes a study that assessed the zinc and copper levels in fadama soils from three extension blocks in Borgu Local Government Area, Niger State, Nigeria. Soil samples were collected from farms across the blocks and analyzed for various properties. The results showed the soils had a sandy loam texture with slightly acidic to neutral pH. Zinc and copper levels were very low across all locations but did not differ significantly. This suggests soil amendments are needed to increase the availability of zinc and copper and support optimal crop yields for farmers.
The document describes a field experiment conducted in Mozambique to evaluate the response of soybean crops to different rates of phosphorus fertilizer. The highest rates of phosphorus (60 kg P2O5 ha-1) led to the tallest plants, highest biomass and grain yields, most pods, and largest seeds. Moderate rates (20-40 kg P2O5 ha-1) optimized some growth parameters. The study demonstrates that phosphorus fertilization can improve soybean yields in the acidic soils of Mozambique's Angónia region.
Characterizing Automobile Industrial Wastewater and its Impacts on Surroundin...Dr. Amarjeet Singh
The wastewater from industries varies so greatly in both flow and pollution strength. So, it is impossible to assign fixed values to their constituents. It is necessary to pretreat the wastes prior to release to the municipal system since lack of adequate treatment of the effluent can cause deterioration of the ecosystem, die off and contamination of the aquatic environment. These adverse effects necessitated the study of wastewater effect on surface water body at Emene Industrial Layout, Enugu State, Nigeria. Wastewater samples were collected, analyzed and compared with the plot of treatment means. The results obtained from the study were compared with WHO and NIS 554 water standards. The wastewater analysis suggested that contaminant at the untreated stage was very high. The results of the treated and river sample were within the WHO and NIS 554 allowable water ranges. Samples at discharge point recorded increased values which suggest high re-contamination along the open channel (from non-point sources) before discharge. This calls for proper monitoring and treatment of the industrial effluent prior to ground water recharge or discharge to surface water.
Development and rainfed paddy soils potency derived from lacustrine material ...NurdinUng
Rainfed paddy soils that are derived from lacustrine and include of E4 agroclimatic zone have many unique properties and potentially for paddy and corn plantations. This sreseach was aimed to: (1) study the soil development of
rainfed paddy soils derived from lacustrine and (2) evaluate rainfed paddy soils potency for paddy and corn in Paguyaman. Soil samples were taken from three profiles according to toposequent, and they were analyzed in laboratory. Data were analyzed with descriptive-quantitative analysis. Furthermore, assessment on rainfed paddy soils potency was conducted with land suitability analysis using parametric approach. Results indicate that all pedon had evolved with B horizons structurization. However, pedon located on the summit slope was more developed and intensely weathered than those of the shoulder and foot slopes.The main pedogenesis in all pedons were through
elluviation, illuviation, lessivage, pedoturbation, and gleization processes. The main factors of pedogenesis were climate, age (time) and topography factors. Therefore, P1 pedons are classified as Ustic Endoaquerts, fine, smectitic,
isohypertermic; P2 as Vertic Endoaquepts, fine, smectitic, isohypertermic; and P3 as Vertic Epiaquepts, fine, smectitic,
isohypertermic. Based on the potentials of the land, the highest of land suitability class (LSC) of land utilization type (LUT) local paddy was highly suitable (S1), while the lowest one was not suitable with nutrient availability as the limiting factor (Nna). The highest LCS of paddy-corn LUT was marginally suitable with water availability as the limiting factor (S3wa), while the lower LSC was not suitable with nutrient availabily as the limiting factor (Nna).
Physico chemical characterization of the groundwater of kotur area hyderabad,...Alexander Decker
This document summarizes a study analyzing the physico-chemical characteristics of groundwater in the Kotur industrial area of Hyderabad, India. Water samples were collected from various locations and analyzed for parameters like pH, electrical conductivity, total dissolved solids, calcium, sodium, chloride, and magnesium. The results showed high levels of these parameters, exceeding WHO guidelines in many cases, indicating contamination from industrial and agricultural activities in the area. Statistical analysis found strong correlations between various parameters, suggesting a common surface source of contamination. The high concentrations of parameters reveal surface contamination originating from anthropogenic sources like nearby industries and agricultural activities.
Studies on the impact of crude oil exploration on soil quality and crops grow...Premier Publishers
The present study evaluated the impact of crude oil exploration on soil quality and crops grown in Kpean Community in Khana Local Government Area of Rivers State. Soil samples were collected at a depth of 0-50cm3 using plastic auger while tuber crops and vegetables were harvested from the same spot as the soils. Findings from this study showed an increase in soil temperature, moisture, electrical conductivity and organic matter content of crude oil impacted soil compared to control (P<0.05).soil><0.05).><0.05)><0.05). The results of this study indicates that crude oil pollution of agricultural farmlands in Kpean Community is yet to be remedied even after 20 years following oil spillage and the soil still remain unsuitable for crop production. Hence, proper remediation of the studied area is paramount in order to reduce metal accumulation and subsequent exposure of the populace to metal poisoning via food chain.
This study evaluated the quality of irrigation water resources in the central Albanian regions of Kavaja and Kruja over 2009-2010. Water samples were collected and analyzed for various parameters including pH, salts, chemicals, and nutrients. The results found that water resources in Kruja generally had low salt levels within established standards. However, resources in Kavaja showed higher salt levels that could cause light soil salinity issues in some areas. Specifically, sodium and chloride levels in certain Kavaja resources posed toxicity risks. Based on standards, the study classified all resources as Class 2 quality. The authors conclude continuous monitoring is needed due to pollution risks from increasing industrial and urban activities in the regions.
Influence of Different Soil Management Practices On Soil Properties and Its I...IOSR Journals
This document summarizes a study on the influence of different land management practices (forest land, golf course, continuous cropping) on soil properties in southeastern Nigeria. Soil samples were collected from the different land use systems and analyzed. Results showed higher levels of exchangeable bases, organic matter, total nitrogen, and available phosphorus in the top 0-20cm soil layer compared to deeper layers, and forest land generally had higher values than the other land uses. Bulk density decreased and total porosity increased with continuous cropping compared to forest land and golf course. Overall, continuous cultivation was found to deplete soil nutrients and reduce soil productivity more than the other land management practices studied.
Similar to IRJET-Physio- Chemical Properties of Soil and its Influence on Crop Yield of Oke-Oyi Irrigation Scheme, Nigeria (20)
TUNNELING IN HIMALAYAS WITH NATM METHOD: A SPECIAL REFERENCES TO SUNGAL TUNNE...IRJET Journal
1) The document discusses the Sungal Tunnel project in Jammu and Kashmir, India, which is being constructed using the New Austrian Tunneling Method (NATM).
2) NATM involves continuous monitoring during construction to adapt to changing ground conditions, and makes extensive use of shotcrete for temporary tunnel support.
3) The methodology section outlines the systematic geotechnical design process for tunnels according to Austrian guidelines, and describes the various steps of NATM tunnel construction including initial and secondary tunnel support.
STUDY THE EFFECT OF RESPONSE REDUCTION FACTOR ON RC FRAMED STRUCTUREIRJET Journal
This study examines the effect of response reduction factors (R factors) on reinforced concrete (RC) framed structures through nonlinear dynamic analysis. Three RC frame models with varying heights (4, 8, and 12 stories) were analyzed in ETABS software under different R factors ranging from 1 to 5. The results showed that displacement increased as the R factor decreased, indicating less linear behavior for lower R factors. Drift also decreased proportionally with increasing R factors from 1 to 5. Shear forces in the frames decreased with higher R factors. In general, R factors of 3 to 5 produced more satisfactory performance with less displacement and drift. The displacement variations between different building heights were consistent at different R factors. This study evaluated how R factors influence
A COMPARATIVE ANALYSIS OF RCC ELEMENT OF SLAB WITH STARK STEEL (HYSD STEEL) A...IRJET Journal
This study compares the use of Stark Steel and TMT Steel as reinforcement materials in a two-way reinforced concrete slab. Mechanical testing is conducted to determine the tensile strength, yield strength, and other properties of each material. A two-way slab design adhering to codes and standards is executed with both materials. The performance is analyzed in terms of deflection, stability under loads, and displacement. Cost analyses accounting for material, durability, maintenance, and life cycle costs are also conducted. The findings provide insights into the economic and structural implications of each material for reinforcement selection and recommendations on the most suitable material based on the analysis.
Effect of Camber and Angles of Attack on Airfoil CharacteristicsIRJET Journal
This document discusses a study analyzing the effect of camber, position of camber, and angle of attack on the aerodynamic characteristics of airfoils. Sixteen modified asymmetric NACA airfoils were analyzed using computational fluid dynamics (CFD) by varying the camber, camber position, and angle of attack. The results showed the relationship between these parameters and the lift coefficient, drag coefficient, and lift to drag ratio. This provides insight into how changes in airfoil geometry impact aerodynamic performance.
A Review on the Progress and Challenges of Aluminum-Based Metal Matrix Compos...IRJET Journal
This document reviews the progress and challenges of aluminum-based metal matrix composites (MMCs), focusing on their fabrication processes and applications. It discusses how various aluminum MMCs have been developed using reinforcements like borides, carbides, oxides, and nitrides to improve mechanical and wear properties. These composites have gained prominence for their lightweight, high-strength and corrosion resistance properties. The document also examines recent advancements in fabrication techniques for aluminum MMCs and their growing applications in industries such as aerospace and automotive. However, it notes that challenges remain around issues like improper mixing of reinforcements and reducing reinforcement agglomeration.
Dynamic Urban Transit Optimization: A Graph Neural Network Approach for Real-...IRJET Journal
This document discusses research on using graph neural networks (GNNs) for dynamic optimization of public transportation networks in real-time. GNNs represent transit networks as graphs with nodes as stops and edges as connections. The GNN model aims to optimize networks using real-time data on vehicle locations, arrival times, and passenger loads. This helps increase mobility, decrease traffic, and improve efficiency. The system continuously trains and infers to adapt to changing transit conditions, providing decision support tools. While research has focused on performance, more work is needed on security, socio-economic impacts, contextual generalization of models, continuous learning approaches, and effective real-time visualization.
Structural Analysis and Design of Multi-Storey Symmetric and Asymmetric Shape...IRJET Journal
This document summarizes a research project that aims to compare the structural performance of conventional slab and grid slab systems in multi-story buildings using ETABS software. The study will analyze both symmetric and asymmetric building models under various loading conditions. Parameters like deflections, moments, shears, and stresses will be examined to evaluate the structural effectiveness of each slab type. The results will provide insights into the comparative behavior of conventional and grid slabs to help engineers and architects select appropriate slab systems based on building layouts and design requirements.
A Review of “Seismic Response of RC Structures Having Plan and Vertical Irreg...IRJET Journal
This document summarizes and reviews a research paper on the seismic response of reinforced concrete (RC) structures with plan and vertical irregularities, with and without infill walls. It discusses how infill walls can improve or reduce the seismic performance of RC buildings, depending on factors like wall layout, height distribution, connection to the frame, and relative stiffness of walls and frames. The reviewed research paper analyzes the behavior of infill walls, effects of vertical irregularities, and seismic performance of high-rise structures under linear static and dynamic analysis. It studies response characteristics like story drift, deflection and shear. The document also provides literature on similar research investigating the effects of infill walls, soft stories, plan irregularities, and different
This document provides a review of machine learning techniques used in Advanced Driver Assistance Systems (ADAS). It begins with an abstract that summarizes key applications of machine learning in ADAS, including object detection, recognition, and decision-making. The introduction discusses the integration of machine learning in ADAS and how it is transforming vehicle safety. The literature review then examines several research papers on topics like lightweight deep learning models for object detection and lane detection models using image processing. It concludes by discussing challenges and opportunities in the field, such as improving algorithm robustness and adaptability.
Long Term Trend Analysis of Precipitation and Temperature for Asosa district,...IRJET Journal
The document analyzes temperature and precipitation trends in Asosa District, Benishangul Gumuz Region, Ethiopia from 1993 to 2022 based on data from the local meteorological station. The results show:
1) The average maximum and minimum annual temperatures have generally decreased over time, with maximum temperatures decreasing by a factor of -0.0341 and minimum by -0.0152.
2) Mann-Kendall tests found the decreasing temperature trends to be statistically significant for annual maximum temperatures but not for annual minimum temperatures.
3) Annual precipitation in Asosa District showed a statistically significant increasing trend.
The conclusions recommend development planners account for rising summer precipitation and declining temperatures in
P.E.B. Framed Structure Design and Analysis Using STAAD ProIRJET Journal
This document discusses the design and analysis of pre-engineered building (PEB) framed structures using STAAD Pro software. It provides an overview of PEBs, including that they are designed off-site with building trusses and beams produced in a factory. STAAD Pro is identified as a key tool for modeling, analyzing, and designing PEBs to ensure their performance and safety under various load scenarios. The document outlines modeling structural parts in STAAD Pro, evaluating structural reactions, assigning loads, and following international design codes and standards. In summary, STAAD Pro is used to design and analyze PEB framed structures to ensure safety and code compliance.
A Review on Innovative Fiber Integration for Enhanced Reinforcement of Concre...IRJET Journal
This document provides a review of research on innovative fiber integration methods for reinforcing concrete structures. It discusses studies that have explored using carbon fiber reinforced polymer (CFRP) composites with recycled plastic aggregates to develop more sustainable strengthening techniques. It also examines using ultra-high performance fiber reinforced concrete to improve shear strength in beams. Additional topics covered include the dynamic responses of FRP-strengthened beams under static and impact loads, and the performance of preloaded CFRP-strengthened fiber reinforced concrete beams. The review highlights the potential of fiber composites to enable more sustainable and resilient construction practices.
Survey Paper on Cloud-Based Secured Healthcare SystemIRJET Journal
This document summarizes a survey on securing patient healthcare data in cloud-based systems. It discusses using technologies like facial recognition, smart cards, and cloud computing combined with strong encryption to securely store patient data. The survey found that healthcare professionals believe digitizing patient records and storing them in a centralized cloud system would improve access during emergencies and enable more efficient care compared to paper-based systems. However, ensuring privacy and security of patient data is paramount as healthcare incorporates these digital technologies.
Review on studies and research on widening of existing concrete bridgesIRJET Journal
This document summarizes several studies that have been conducted on widening existing concrete bridges. It describes a study from China that examined load distribution factors for a bridge widened with composite steel-concrete girders. It also outlines challenges and solutions for widening a bridge in the UAE, including replacing bearings and stitching the new and existing structures. Additionally, it discusses two bridge widening projects in New Zealand that involved adding precast beams and stitching to connect structures. Finally, safety measures and challenges for strengthening a historic bridge in Switzerland under live traffic are presented.
React based fullstack edtech web applicationIRJET Journal
The document describes the architecture of an educational technology web application built using the MERN stack. It discusses the frontend developed with ReactJS, backend with NodeJS and ExpressJS, and MongoDB database. The frontend provides dynamic user interfaces, while the backend offers APIs for authentication, course management, and other functions. MongoDB enables flexible data storage. The architecture aims to provide a scalable, responsive platform for online learning.
A Comprehensive Review of Integrating IoT and Blockchain Technologies in the ...IRJET Journal
This paper proposes integrating Internet of Things (IoT) and blockchain technologies to help implement objectives of India's National Education Policy (NEP) in the education sector. The paper discusses how blockchain could be used for secure student data management, credential verification, and decentralized learning platforms. IoT devices could create smart classrooms, automate attendance tracking, and enable real-time monitoring. Blockchain would ensure integrity of exam processes and resource allocation, while smart contracts automate agreements. The paper argues this integration has potential to revolutionize education by making it more secure, transparent and efficient, in alignment with NEP goals. However, challenges like infrastructure needs, data privacy, and collaborative efforts are also discussed.
A REVIEW ON THE PERFORMANCE OF COCONUT FIBRE REINFORCED CONCRETE.IRJET Journal
This document provides a review of research on the performance of coconut fibre reinforced concrete. It summarizes several studies that tested different volume fractions and lengths of coconut fibres in concrete mixtures with varying compressive strengths. The studies found that coconut fibre improved properties like tensile strength, toughness, crack resistance, and spalling resistance compared to plain concrete. Volume fractions of 2-5% and fibre lengths of 20-50mm produced the best results. The document concludes that using a 4-5% volume fraction of coconut fibres 30-40mm in length with M30-M60 grade concrete would provide benefits based on previous research.
Optimizing Business Management Process Workflows: The Dynamic Influence of Mi...IRJET Journal
The document discusses optimizing business management processes through automation using Microsoft Power Automate and artificial intelligence. It provides an overview of Power Automate's key components and features for automating workflows across various apps and services. The document then presents several scenarios applying automation solutions to common business processes like data entry, monitoring, HR, finance, customer support, and more. It estimates the potential time and cost savings from implementing automation for each scenario. Finally, the conclusion emphasizes the transformative impact of AI and automation tools on business processes and the need for ongoing optimization.
Multistoried and Multi Bay Steel Building Frame by using Seismic DesignIRJET Journal
The document describes the seismic design of a G+5 steel building frame located in Roorkee, India according to Indian codes IS 1893-2002 and IS 800. The frame was analyzed using the equivalent static load method and response spectrum method, and its response in terms of displacements and shear forces were compared. Based on the analysis, the frame was designed as a seismic-resistant steel structure according to IS 800:2007. The software STAAD Pro was used for the analysis and design.
Cost Optimization of Construction Using Plastic Waste as a Sustainable Constr...IRJET Journal
This research paper explores using plastic waste as a sustainable and cost-effective construction material. The study focuses on manufacturing pavers and bricks using recycled plastic and partially replacing concrete with plastic alternatives. Initial results found that pavers and bricks made from recycled plastic demonstrate comparable strength and durability to traditional materials while providing environmental and cost benefits. Additionally, preliminary research indicates incorporating plastic waste as a partial concrete replacement significantly reduces construction costs without compromising structural integrity. The outcomes suggest adopting plastic waste in construction can address plastic pollution while optimizing costs, promoting more sustainable building practices.
KuberTENes Birthday Bash Guadalajara - K8sGPT first impressionsVictor Morales
K8sGPT is a tool that analyzes and diagnoses Kubernetes clusters. This presentation was used to share the requirements and dependencies to deploy K8sGPT in a local environment.
Using recycled concrete aggregates (RCA) for pavements is crucial to achieving sustainability. Implementing RCA for new pavement can minimize carbon footprint, conserve natural resources, reduce harmful emissions, and lower life cycle costs. Compared to natural aggregate (NA), RCA pavement has fewer comprehensive studies and sustainability assessments.
Presentation of IEEE Slovenia CIS (Computational Intelligence Society) Chapte...University of Maribor
Slides from talk presenting:
Aleš Zamuda: Presentation of IEEE Slovenia CIS (Computational Intelligence Society) Chapter and Networking.
Presentation at IcETRAN 2024 session:
"Inter-Society Networking Panel GRSS/MTT-S/CIS
Panel Session: Promoting Connection and Cooperation"
IEEE Slovenia GRSS
IEEE Serbia and Montenegro MTT-S
IEEE Slovenia CIS
11TH INTERNATIONAL CONFERENCE ON ELECTRICAL, ELECTRONIC AND COMPUTING ENGINEERING
3-6 June 2024, Niš, Serbia
Comparative analysis between traditional aquaponics and reconstructed aquapon...bijceesjournal
The aquaponic system of planting is a method that does not require soil usage. It is a method that only needs water, fish, lava rocks (a substitute for soil), and plants. Aquaponic systems are sustainable and environmentally friendly. Its use not only helps to plant in small spaces but also helps reduce artificial chemical use and minimizes excess water use, as aquaponics consumes 90% less water than soil-based gardening. The study applied a descriptive and experimental design to assess and compare conventional and reconstructed aquaponic methods for reproducing tomatoes. The researchers created an observation checklist to determine the significant factors of the study. The study aims to determine the significant difference between traditional aquaponics and reconstructed aquaponics systems propagating tomatoes in terms of height, weight, girth, and number of fruits. The reconstructed aquaponics system’s higher growth yield results in a much more nourished crop than the traditional aquaponics system. It is superior in its number of fruits, height, weight, and girth measurement. Moreover, the reconstructed aquaponics system is proven to eliminate all the hindrances present in the traditional aquaponics system, which are overcrowding of fish, algae growth, pest problems, contaminated water, and dead fish.
Introduction- e - waste – definition - sources of e-waste– hazardous substances in e-waste - effects of e-waste on environment and human health- need for e-waste management– e-waste handling rules - waste minimization techniques for managing e-waste – recycling of e-waste - disposal treatment methods of e- waste – mechanism of extraction of precious metal from leaching solution-global Scenario of E-waste – E-waste in India- case studies.
Electric vehicle and photovoltaic advanced roles in enhancing the financial p...IJECEIAES
Climate change's impact on the planet forced the United Nations and governments to promote green energies and electric transportation. The deployments of photovoltaic (PV) and electric vehicle (EV) systems gained stronger momentum due to their numerous advantages over fossil fuel types. The advantages go beyond sustainability to reach financial support and stability. The work in this paper introduces the hybrid system between PV and EV to support industrial and commercial plants. This paper covers the theoretical framework of the proposed hybrid system including the required equation to complete the cost analysis when PV and EV are present. In addition, the proposed design diagram which sets the priorities and requirements of the system is presented. The proposed approach allows setup to advance their power stability, especially during power outages. The presented information supports researchers and plant owners to complete the necessary analysis while promoting the deployment of clean energy. The result of a case study that represents a dairy milk farmer supports the theoretical works and highlights its advanced benefits to existing plants. The short return on investment of the proposed approach supports the paper's novelty approach for the sustainable electrical system. In addition, the proposed system allows for an isolated power setup without the need for a transmission line which enhances the safety of the electrical network
TIME DIVISION MULTIPLEXING TECHNIQUE FOR COMMUNICATION SYSTEMHODECEDSIET
Time Division Multiplexing (TDM) is a method of transmitting multiple signals over a single communication channel by dividing the signal into many segments, each having a very short duration of time. These time slots are then allocated to different data streams, allowing multiple signals to share the same transmission medium efficiently. TDM is widely used in telecommunications and data communication systems.
### How TDM Works
1. **Time Slots Allocation**: The core principle of TDM is to assign distinct time slots to each signal. During each time slot, the respective signal is transmitted, and then the process repeats cyclically. For example, if there are four signals to be transmitted, the TDM cycle will divide time into four slots, each assigned to one signal.
2. **Synchronization**: Synchronization is crucial in TDM systems to ensure that the signals are correctly aligned with their respective time slots. Both the transmitter and receiver must be synchronized to avoid any overlap or loss of data. This synchronization is typically maintained by a clock signal that ensures time slots are accurately aligned.
3. **Frame Structure**: TDM data is organized into frames, where each frame consists of a set of time slots. Each frame is repeated at regular intervals, ensuring continuous transmission of data streams. The frame structure helps in managing the data streams and maintaining the synchronization between the transmitter and receiver.
4. **Multiplexer and Demultiplexer**: At the transmitting end, a multiplexer combines multiple input signals into a single composite signal by assigning each signal to a specific time slot. At the receiving end, a demultiplexer separates the composite signal back into individual signals based on their respective time slots.
### Types of TDM
1. **Synchronous TDM**: In synchronous TDM, time slots are pre-assigned to each signal, regardless of whether the signal has data to transmit or not. This can lead to inefficiencies if some time slots remain empty due to the absence of data.
2. **Asynchronous TDM (or Statistical TDM)**: Asynchronous TDM addresses the inefficiencies of synchronous TDM by allocating time slots dynamically based on the presence of data. Time slots are assigned only when there is data to transmit, which optimizes the use of the communication channel.
### Applications of TDM
- **Telecommunications**: TDM is extensively used in telecommunication systems, such as in T1 and E1 lines, where multiple telephone calls are transmitted over a single line by assigning each call to a specific time slot.
- **Digital Audio and Video Broadcasting**: TDM is used in broadcasting systems to transmit multiple audio or video streams over a single channel, ensuring efficient use of bandwidth.
- **Computer Networks**: TDM is used in network protocols and systems to manage the transmission of data from multiple sources over a single network medium.
### Advantages of TDM
- **Efficient Use of Bandwidth**: TDM all
Optimizing Gradle Builds - Gradle DPE Tour Berlin 2024Sinan KOZAK
Sinan from the Delivery Hero mobile infrastructure engineering team shares a deep dive into performance acceleration with Gradle build cache optimizations. Sinan shares their journey into solving complex build-cache problems that affect Gradle builds. By understanding the challenges and solutions found in our journey, we aim to demonstrate the possibilities for faster builds. The case study reveals how overlapping outputs and cache misconfigurations led to significant increases in build times, especially as the project scaled up with numerous modules using Paparazzi tests. The journey from diagnosing to defeating cache issues offers invaluable lessons on maintaining cache integrity without sacrificing functionality.