The document discusses manures and fertilizers. It provides details on farmyard manure (FYM), including its composition, characteristics, and methods to improve it. FYM is a mixture of cattle dung, urine, litter, and fodder residues. It has low nutrient content of around 0.5% N, 0.25% P2O5, and 0.5% K2O. The document recommends the trench method for FYM preparation to reduce losses during handling and storage. It also suggests enriching FYM with superphosphate before field application.
Fertilizer Control Order (FCO) is a crucial regulatory framework implemented by governments to ensure the quality, availability, and proper use of fertilizers. It serves as a mechanism to monitor and regulate the production, distribution, labeling, and sale of fertilizers, with the ultimate goal of promoting sustainable agriculture and safeguarding the interests of farmers and consumers.
The FCO encompasses a wide range of provisions and regulations that govern various aspects of the fertilizer industry. One of its primary objectives is to ensure the quality of fertilizers available in the market. The FCO sets specific standards for nutrient content, physical characteristics, impurities, and labeling requirements. By enforcing these standards, the FCO aims to prevent the sale of substandard or adulterated fertilizers that could have detrimental effects on crop productivity and soil health.
Another key aspect of the FCO is the regulation of fertilizer pricing. Governments often intervene to control the prices of fertilizers to make them affordable for farmers. The FCO may include provisions to monitor and control the pricing of fertilizers, ensuring that they remain accessible to farmers while preventing price manipulation and exploitation.
The FCO also addresses the licensing and registration of fertilizer manufacturers, importers, and distributors. Manufacturers and importers are required to obtain licenses or registrations from the designated regulatory authorities. This helps in maintaining a record of fertilizer producers and suppliers, ensuring accountability, and enabling traceability in case of any quality-related issues or non-compliance.
To ensure compliance with the FCO, regulatory bodies are empowered with inspection and monitoring mechanisms. They conduct regular inspections of fertilizer manufacturing facilities, storage sites, and distribution channels to verify compliance with quality standards, labeling requirements, and other provisions of the FCO. Non-compliance can lead to penalties, fines, or even suspension of licenses, acting as a deterrent for violations and promoting adherence to the regulations.
The FCO also addresses the issue of fertilizers' safe and efficient use. It may mandate the inclusion of information on fertilizer labels regarding dosage, application methods, and safety precautions. This helps farmers make informed decisions about fertilizer application, preventing excessive or improper use that can lead to environmental pollution, nutrient imbalances, and crop damage. The FCO may also encourage the promotion of organic and biofertilizers, providing incentives and support for their production and utilization.
Fertilizer Control Order (FCO) is a crucial regulatory framework implemented by governments to ensure the quality, availability, and proper use of fertilizers. It serves as a mechanism to monitor and regulate the production, distribution, labeling, and sale of fertilizers, with the ultimate goal of promoting sustainable agriculture and safeguarding the interests of farmers and consumers.
The FCO encompasses a wide range of provisions and regulations that govern various aspects of the fertilizer industry. One of its primary objectives is to ensure the quality of fertilizers available in the market. The FCO sets specific standards for nutrient content, physical characteristics, impurities, and labeling requirements. By enforcing these standards, the FCO aims to prevent the sale of substandard or adulterated fertilizers that could have detrimental effects on crop productivity and soil health.
Another key aspect of the FCO is the regulation of fertilizer pricing. Governments often intervene to control the prices of fertilizers to make them affordable for farmers. The FCO may include provisions to monitor and control the pricing of fertilizers, ensuring that they remain accessible to farmers while preventing price manipulation and exploitation.
The FCO also addresses the licensing and registration of fertilizer manufacturers, importers, and distributors. Manufacturers and importers are required to obtain licenses or registrations from the designated regulatory authorities. This helps in maintaining a record of fertilizer producers and suppliers, ensuring accountability, and enabling traceability in case of any quality-related issues or non-compliance.
To ensure compliance with the FCO, regulatory bodies are empowered with inspection and monitoring mechanisms. They conduct regular inspections of fertilizer manufacturing facilities, storage sites, and distribution channels to verify compliance with quality standards, labeling requirements, and other provisions of the FCO. Non-compliance can lead to penalties, fines, or even suspension of licenses, acting as a deterrent for violations and promoting adherence to the regulations.
The FCO also addresses the issue of fertilizers' safe and efficient use. It may mandate the inclusion of information on fertilizer labels regarding dosage, application methods, and safety precautions. This helps farmers make informed decisions about fertilizer application, preventing excessive or improper use that can lead to environmental pollution, nutrient imbalances, and crop damage. The FCO may also encourage the promotion of organic and biofertilizers, providing incentives and support for their production and utilization.
Diagnosis and Recommendation Integrated System is a new approach to interpreting leaf or plant analysis and a comprehensive system which identifies all the nutritional factors limiting crop production and increases the chances of obtaining high crop yields by improving fertilizer recommendations.
A brief study on Integrated Nutrient Management (INM). This presentation has created by me after studying many articles and research papers regarding INM. Suggestions are kindly invited.
The portion of a plant left in the field after harvest of the crop that is (straw, stalks, stems, leaves, roots) not used domestically or sold commercially”. The non – economical plant parts that are left in the field after harvest and remains that are generated from packing sheds or that are discarded during crop processing. Organic recycling has to play a key role in achieving sustainability in agricultural production. Multipurpose uses of crop residue include, but are not limited to, animal feeding, soil mulching, bio-manure, thatching of rural homes and fuel for domestic and industrial use. Thus, crop residues are of tremendous value to the farmers. Crop residue benefit the soil physically, chemically as well as biologically.
Diagnosis and Recommendation Integrated System is a new approach to interpreting leaf or plant analysis and a comprehensive system which identifies all the nutritional factors limiting crop production and increases the chances of obtaining high crop yields by improving fertilizer recommendations.
A brief study on Integrated Nutrient Management (INM). This presentation has created by me after studying many articles and research papers regarding INM. Suggestions are kindly invited.
The portion of a plant left in the field after harvest of the crop that is (straw, stalks, stems, leaves, roots) not used domestically or sold commercially”. The non – economical plant parts that are left in the field after harvest and remains that are generated from packing sheds or that are discarded during crop processing. Organic recycling has to play a key role in achieving sustainability in agricultural production. Multipurpose uses of crop residue include, but are not limited to, animal feeding, soil mulching, bio-manure, thatching of rural homes and fuel for domestic and industrial use. Thus, crop residues are of tremendous value to the farmers. Crop residue benefit the soil physically, chemically as well as biologically.
IndexBox Marketing has just published its report: “EU: Manure Spreaders and Fertilizer Distributors - Market Report. Analysis And Forecast To 2020”. This report focuses on the EU manure spreader market, providing a comprehensive analysis and the most recent data on its market size and volume, EU trade, price dynamics, domestic production, and turnover in the industry. The market trends section reveals the main issues and uncertainties concerning the industry, while the medium-term outlook uncovers market prospects. The attractivity index (IB Index) summarizes the source of existing opportunities as they appear in this market, as well as an interpretation of the trade figures.
Exploring new source of organic manure for fertilizer micro dose technology r...ICRISAT
The micro-dosing fertilizer application technology was designed for small and medium scale farmers to maximize the effect of small quantity of available organic and inorganic fertilizers. While the technology presently rely on ruminants manure as the organic source, poultry production is on the rise and expected to generate significant quantity of organic manure. This gives opportunity to use poultry manure in micro-dose technology. It is generally believed that poultry manure is higher in nutrient than ruminant manure. This may increase its potential as a source of organic fertilizer for the micro-dosing technology.It is necessary to evaluate the poultry manure in combination with other organic and inorganic fertilizers.
From the foregoing discussion it can be concluded that the application of deoiled cakes as organic manures enhances the growth and biomass production of tree seedlings.
Also low C: N ratio its decomposition rate is faster than easily available for plant nutrients and reduces population of plant-parasitic nematodes.
Among various deoiled seed cakes mahua, neem, castor, sal, karanj, mustard etc. proved that the good potentiality of deoiled seed cakes as an effective and much cheaper source of plant nutrients.
Earthworms Vermicompost - A Powerful Crop Nutrient over the Conventional Compost & Protective Soil Conditioner; Gardening Guidebook for Australia www.scribd.com/doc/239851313 ~ Griffith University ~ For more information, Please see websites below:
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Organic Edible Schoolyards & Gardening with Children =
http://scribd.com/doc/239851214 ~
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http://scribd.com/doc/239851079 ~
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Free School Gardening Art Posters =
http://scribd.com/doc/239851159 ~
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Increase Food Production with Companion Planting in your School Garden =
http://scribd.com/doc/239851159 ~
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Healthy Foods Dramatically Improves Student Academic Success =
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City Chickens for your Organic School Garden =
http://scribd.com/doc/239850440 ~
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Huerto Ecológico, Tecnologías Sostenibles, Agricultura Organica
http://scribd.com/doc/239850233
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Simple Square Foot Gardening for Schools - Teacher Guide =
http://scribd.com/doc/239851110
Alan Sundermeier and Dr. Vinayak Shedekar - Soil biological Response to BMPs John Blue
Soil biological Response to BMPs - Alan Sundermeier, OSU Extension, and Dr. Vinayak Shedekar, USDA-ARS, from the 2020 Conservation Tillage and Technology Conference, held March 3-4, 2020, Ada, OH, USA.
Soil enzyme increase the reaction rate at which plant residues decompose and release plant available nutrients.
The substance acted upon by soil enzyme is called substrate.
Eg. Glucosidase(soil enzyme) cleaves glucose from glucoside(substrate),
1.Constitutive
Always present in nearly constant amounts in a cell (not affected by addition of any particular substrate…genes always expressed.) (pyro-phosphatase).
2.Inducible
Present only in trace amounts or not at all, but quickly increases in concentration when its substrate is present. (Amidase).
Both enzymes are present in the soil.
Oxidoreductases – Oxidation reduction reaction (Dehydrogenase, Catalase, Peroxidase)
Transferases – The transfer of group of atoms from donor to an acceptor molecule. (Aminotransferases, Rhodonase)
Hydrolases – Hydrolytic cleavage of bonds. (Phosphatase, Cellulase, Urease)
Lysates – Cleavage of bonds other than hydrolysis or oxidation.
Isomerases – Isomerisation reaction.
Ligases – Formation of bonds by the cleavage of ATP. (Acetyl-CoA carboxylase)
Organic farming with special reference to vermicultureTakeleZike1
This presentation delves into the principles and practices of organic farming, with a particular focus on the innovative technique of vermiculture. Organic farming represents a sustainable approach to agriculture that emphasizes the use of natural inputs and biological processes to enhance soil fertility, conserve resources, and minimize environmental impact. Within this context, vermiculture, or the use of earthworms to process organic waste and create nutrient-rich vermicompost, emerges as a powerful tool for organic farmers.
Throughout the presentation, key aspects of organic farming are explored, including soil health management, crop rotation, companion planting, and natural pest control methods. The role of vermiculture in organic farming systems is examined in depth, highlighting its benefits in improving soil structure, increasing microbial activity, and supplying essential nutrients to plants. Practical guidance is provided on setting up and managing a vermiculture system, from selecting suitable earthworm species to optimizing environmental conditions for composting.
Case studies and examples illustrate the real-world applications of organic farming and vermiculture, showcasing successful initiatives and their positive impact on agricultural sustainability, biodiversity, and food security. By promoting a holistic and ecologically sound approach to agriculture, this presentation aims to inspire farmers, researchers, and policymakers to embrace organic farming practices, with vermiculture as a valuable component in achieving long-term agricultural resilience and environmental stewardship.
ORGANIC MATTER AND ITS DECOMPOSITION.pptxVanangamudiK1
ORGANIC MATTER AND ITS DECOMPOSITION
Organic matter
Composition of organic residues
Organic matter classification
Decomposition of soil organic matter
C: N ratio
Role of organic matter
Factors affecting soil organic matter
Factors affecting organic matter decomposition
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Advantage of SRI over Conventionally Transplanted Rice are discussed on the following Parameters: Yield and Yield Attributing Characters, Water Productivity, Soil Properties, Nitrogen Use Efficiency ,Phosphorus and Potassium use efficiency, Ammonia Loss and Microbiological Properties.
Effect of minimum tillage and Mulching on nutrient Transformation in rice bas...P.K. Mani
Paper presented at PAU, LUdhiana, 2012 describing nutrient transformation in rice based cropping system following zero tillage vs conventional tillage.
Embracing GenAI - A Strategic ImperativePeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
Model Attribute Check Company Auto PropertyCeline George
In Odoo, the multi-company feature allows you to manage multiple companies within a single Odoo database instance. Each company can have its own configurations while still sharing common resources such as products, customers, and suppliers.
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
For more information, visit-www.vavaclasses.com
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Francesca Gottschalk from the OECD’s Centre for Educational Research and Innovation presents at the Ask an Expert Webinar: How can education support child empowerment?
Macroeconomics- Movie Location
This will be used as part of your Personal Professional Portfolio once graded.
Objective:
Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
The Roman Empire A Historical Colossus.pdfkaushalkr1407
The Roman Empire, a vast and enduring power, stands as one of history's most remarkable civilizations, leaving an indelible imprint on the world. It emerged from the Roman Republic, transitioning into an imperial powerhouse under the leadership of Augustus Caesar in 27 BCE. This transformation marked the beginning of an era defined by unprecedented territorial expansion, architectural marvels, and profound cultural influence.
The empire's roots lie in the city of Rome, founded, according to legend, by Romulus in 753 BCE. Over centuries, Rome evolved from a small settlement to a formidable republic, characterized by a complex political system with elected officials and checks on power. However, internal strife, class conflicts, and military ambitions paved the way for the end of the Republic. Julius Caesar’s dictatorship and subsequent assassination in 44 BCE created a power vacuum, leading to a civil war. Octavian, later Augustus, emerged victorious, heralding the Roman Empire’s birth.
Under Augustus, the empire experienced the Pax Romana, a 200-year period of relative peace and stability. Augustus reformed the military, established efficient administrative systems, and initiated grand construction projects. The empire's borders expanded, encompassing territories from Britain to Egypt and from Spain to the Euphrates. Roman legions, renowned for their discipline and engineering prowess, secured and maintained these vast territories, building roads, fortifications, and cities that facilitated control and integration.
The Roman Empire’s society was hierarchical, with a rigid class system. At the top were the patricians, wealthy elites who held significant political power. Below them were the plebeians, free citizens with limited political influence, and the vast numbers of slaves who formed the backbone of the economy. The family unit was central, governed by the paterfamilias, the male head who held absolute authority.
Culturally, the Romans were eclectic, absorbing and adapting elements from the civilizations they encountered, particularly the Greeks. Roman art, literature, and philosophy reflected this synthesis, creating a rich cultural tapestry. Latin, the Roman language, became the lingua franca of the Western world, influencing numerous modern languages.
Roman architecture and engineering achievements were monumental. They perfected the arch, vault, and dome, constructing enduring structures like the Colosseum, Pantheon, and aqueducts. These engineering marvels not only showcased Roman ingenuity but also served practical purposes, from public entertainment to water supply.
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
2. Soil Fertility: it is the potential of the earth or inherent
capacity of the soil to supply plant nutrients in
quantity, forms and proportion required for the
growth and development of the crop.
Fertility is measured by the amount of chemical
elements or compounds required for plant growth
Productivity of a soil is defined as its capacity to
produce plants under specified programme of
management.
It is measured by the yield of the crop per unit
area of the land
Fertility is one of the factors of soil productivity.
Sometimes a soil may be fertile but may not be
productive.
3. N.T.de Saussure (1804) – Swiss phycisist
J.B.Boussingault (1834)- French physicist and Agriculturist
-they estd. that plant needs mineral elements for the growth and
development.
N is necessary for plants which come from the soil and not from the
air.
German Chemist Justus von Liebig (1840)- most important
contributionP,K,Ca,S which are necessary for the growth and development of plants
are derived from soils.
He estd. the fact that C is necessary for the growth of plants which is derived
from the CO2 of air and not from the soil as it was believed earlier
In 1845 he established the essential nature of K for the growth
of plants.
He established certain principles for sound soil management
The decrease in fertility of a cropped soil can be restored by applying mineral
element removed by crops.
The Law of Minimum in relation to plant nutrition:
4. Liebig’s Law of Minimum- The growth or
yield of a crop is limited by that factor which
is present in relatively least amount.
Justus von
Liebig, 1840
Eg.
N
Requirement
100
Amount available 40
40%
P
K
50
25
50%
60
30
50%
So, here N is the factor which limits the crop growth.
Liebig was probably the first to express
the yield as a mathematical function of the
given growth factor when all the other
factors kept constant
y = Ax - B
A,B, = constant
Father of modern Agricultural Chemistry
5.
6. Liebig’s law of minimum
von
Liebig
1803
-1873
N
N
P
P
K Mg S
N
K
N
P
P
K
K Mg S
?
7. Law of diminishing
return :
where increases in
yield of a crop (per
unit of available
nutrient) decreases as
the level of available
nutrient approaches
sufficiency.
“The increase in yield by a unit increment of the deficient
factor is proportional to the decrement of that factor from the
maximum.”
Immobile nutrients
dy/dx = (A-y)C
.
follow (P, K,and Ca
Mitscherlich’
in soil) follow
(by integration) y = A (1-10-Cx)
s Equation
or, log (A-y) = log A – Cx
Mitscerlich’s
concept
Yield increases (dy) per unit of available nutrient (dx) decrease as
the current yield (y) approaches a maximum yield (A) with C being
a proportionality constant
8. How do I decide about fertilizer
Climate
Feed the plant need!
Crop need for
nutrients
Indigenous
nutrient supply
Manure
Irrigation water Crop residues
Soil
N-P-K
Inorganic
fertilizer
9. J.B.Lawes (1837); He was associated at Rothamstead
Experimental
station.
He first prepared superphosphate and used in the field.
J.H. Gilbert and J.B. Lawes (1852)
conclusively demonstrated that fertility of a cropped soil can be
restored by applying mineral elements and macro elements.
In 1855 they established the essential nature of N.
The term "manure" originally meant that which
was "worked by hand" (Fr. manoeuvre), but
gradually came to apply to any process by which
the soil could be improved
10. Manures:
The materials, which are organic in origin, bulky in
nature and capable of supplying plant materials in
available forms having no definite chemical composition
with very low analytical value and generally produced
from animal and plant waste products, are called
manures.
Fertilizers:
The materials, which are capable of supplying
plant nutrients in ample quantity having a definite
composition and a high analytical value, are called the
fertilizers. They are generally inorganic in nature and
most of them are industrial products
11. Advantages of Manures
Improve soil structure, aeration, infiltration
rate and water holding capacity of soil.
Provide all essential nutrient elements, which
are available in the soil for longer periods.
Regulate the soil temperature in summer as
well as in winter.
Promote microbial activity in the soil.
Reduce soil erosion in sandy soils.
Can be prepared locally and eco-friendly
12. Limitations of Manures
Elemental content is low and nutrients
availability is slow.
If applied when not fully decomposed, tend to
induce nutritional deficiency.
Promote the activities of soil born insects, e.g.,
red ant, termites, cutworm etc.
13. Advantages of Fertilizers (golden molecule)
They are high nutrients element content with definite
chemical composition.
Nutrient elements become quickly and readily available to
plants when applied.
Limitations of Fertilizers
May Deteriorate the physical condition of soil.
More losses by leaching, surface run-off or volatilization.
Not easily available due to fixation in the soil (elements
cannot be absorbed).
They are costly and sometimes not available in the local
market.
14. Classification of Manures
Manures are classified on the basis of their N content and organic
matter present on the soil. On the basis of N content, manures may be
arbitrarily grouped into Bulky organic manures and
Concentrated organic manures
Sources of organic residues:
1.Cattleshed wastes: dung, urine, and slurry from a bio gas plant
2.Human habitation waste: town refuse, sewage, sludge
3.Poultry litter, droppings of sheep and goat
4.Slaughter house wastes: bone meal, meat meal, blood meal , horn
and hoof meal
5.Fisheries waste
6.By products of agro–industries:Oil cakes, bagasse and pressmud
from sugar industries, wastes from fruit and vegetable processing,
tea wastes, cotton wastes and any such vegetable matter
7.Crop wastes: sugarcane trash, stubbles,
8.Water hyacinth and tank silt
9.Green manuring crops
17. Farmyard Manure
Farmyard manure is a decomposed mixture of
cattle dung and urine with straw and litter used as
bedding material and residues from the fodder fed
to the cattle.
This is the traditional manure and is mostly
readily available to the farmers.
Variation in the composition of the manure (FYM)
Kind of the animals
Age and individuality
Feed used
Bedding materials
Handling and Storage
18. Characteristics of FYM:
Moisture Content: 60-75%
Low analytical value: N:P:K= 0.5% : 0.25%: 0.5%
Some residual effect.
Nutrients present mostly in the organic forms which
subsequently would be converted to inorganic forms to
become available to plants. This takes along time. So if a few
cart of FYM is used in a crop it will be helpful for the
succeeding crop unlike the commercial fertilizers.
Complete manure: Number of nutrients are available,
(though unbalanced in FYM). So micronutrient deficiencies
may be checked.
19. Decomposition of FYM:
Anaerobic→ Foul smell (Putrefaction)
Aerobic →
CO2 + H2O (Decay)
Decomposition of FYM :
Urine : Urine contains urea which subsequently
breakdown to ammonia and liberate in the air.
CO(NH2)2 → ( NH4)2CO3 →
NH4+ + CO3-2 + H2O
↓
NH3 ↑+ CO2 + H2O
20. Reactions of organic manures in soils
Protein & allied Compound undergoes mineralization in three steps,
viz., Aminization, Ammonification, Nitrification
Aminization : (Protein → Proteose → Peptone → Peptide →
Amino acid compd)
Proteins
R- NH2 + CO2 + energy + other products
Ammonification : (R-NH2 + H2O → R – OH + NH3 + E
by enzymatic hydrolysis)
H 2O
NH4+ + OHThe relesaed (NH4+) is subject to following changes:
Nitrification:
(i) 2NH+4 +3O2 → 2NO2 +2 H2O + 4H+ + 66 KCal (enzymatic oxdn)
Nitrosomonas europae
2NO2- + O2→ 2NO3- + 18 KCal (enzymatic oxdn)
Nitrobacter winogradskii
(ii) It (NH4+) may be absorbed directly by plants
+
21.
22.
23. Factors affecting decomposition (FYM):
(i)Temperature:
With increase in Temperature, decomposition becomes faster.
Hence, higher the rate of decomposition – higher the loss of
Nutrients (Nitrogen).
(ii) Compactness of heap:
In open and light heap, aerobic organisms takes part in the
decomposition of manure. In compact heap, the fermentation is
slow but regular fermentation is going on mainly due to anaerobic
organisms. We should prefer aerobic decomposition (Light
heap).
(iii) Moisture :- Some amount of moisture is needed to hasten the
microbial decomposition. If moisture level is too high
it will retard fermentation
(iv) Constituents :- The decomposition of manure depends on the
presence of soluble nitrogenous matter in the manure. If urine
constituent is higher, decomposition is rapid, because
microbial organism assimilate N from Urine.
24.
25. The April 22, 1970,
Earth Day marked the
beginning of the
modern environmental
movement
27. Possible Nutrient Losses from Manure between Excretion and Crop Uptake
Loss due to handling:
liquid portion as urine and solid
portion as cowdung cake
Loss due to storage: Leaching loss and Volatilization
28. A. Losses during handling :
i) Losses of dung: Dung is a valuable manure. Still larger portion is
dried in dung cakes and burnt as fuel . Besides this large portion of
cattle excrements is dropped out side the cattle shed, when the
animals are grazing on the uncultivated lands. This can be used for
preparation of FYM.
ii) Losses
of urine: Urine contains N and K in large portions. But there
is no good method of preserving the urine in our country. In our
country most of the cattle sheds have un cemented or kachha floor
and the urine gets soaked in the soils of kachha floor of the cattle
shed and the large quantities of nitrogen are thus lost through the
formation of gaseous ammonia as follows
(i) CO(NH2)2 + 2H2O = (NH4)2CO3
Urea in urine
Ammonium carbonate
(ii) (NH4)2CO3 + 2H2O = 2NH4OH + H2CO3
Ammonium hydroxide
(iii) NH4OH = NH3
+ H2O
29. B. Losses during preparation and storage :
Cow dung and other farm wastes are collected daily and these are accumulated
in manure pit in open space for months together.The manure remain exposed to
sun and rain during this period. Due to this effect the nutrients are lost in
following ways .
i) By leaching :
Nutrients of manures are water soluble and these are
liable to get washed by rain water .The leaching loss of nutrients will vary with
the surface exposed, the intensity of rain fall and the slope of the surface on
which manure is heaped. The leaching loss may be prevented by erecting a
roof over the pit .
ii) By volatilization :
During storage, the urine and dung are decomposed and considerable amount
of ammonia is produced .The ammonia combines with carbonic acid to form
ammonium carbonate and bicarbonate, which are rather unstable and gaseous
ammonia may be readily liberated and passes into atmosphere as indicated in
the following equations.
I. Urea and other nitrogenous compounds (Urine, dung) liberates NH 3
30. How to improve the composition of FYM
Better Handling:
Store in a Pit (Dr.C.N.Acharya)
Use in Gobar Gas plant
Use of Chemical Preservatives
31. Improved methods of handling farm yard manure
(I) Trench method of preparing FYM:
This method has been recommended by C.N.Acharya. The manure
preparation should be carried in trenches of suitable size, say 20-25’ Length,
5-6’ Breadth and 3-3.5’ Depth. All available dry litter and refuse from the farm
and the houses should be heaped up near the cattle shed and portions of
litter mixed with earth if available should be spread in the shed in the evening
[@2.26 kg per animal for the absorption of urine.]
The litter should be localized in the areas where urine generally
drops and soaks into the ground. Every morning the urine soaked litter and
dung should be well mixed and then taken into the manure trench.
A section of 3 feet length of the trench from one end should be taken
up for filling with daily collection of refuse from cattle shed. When the trench
is filled to the height of 1.5 to 2.0 feet above ground level, the top is made
dome shaped and plastered with cow dung mixed with soil. The manure
becomes ready for about 3 months. By this time the next 3 feet length of the
trench being filled up.
Generally 2 such trenches would be needed for 3-4 cattle. It is
possible to prepare by this process 250-300 cubic feet of manure (3 to 5 tones
or 10-12 cart loads) per animal.
The FYM should be enriched by addition of super phosphate @30-40 kg per
trench before application to fields. The content of nitrogen is at least 0.7 to 0.8
% N on the fresh weight basis or 1.4 to 1.6 % N on dry weight basis.
32. (ii) Use of Chemical preservatives :
Chemical preservatives are added to farm yard manure
to
decrease nitrogen losses.
To be most effective the preservatives are added in the cattle shade
to permit direct contact with the liquid portion of excreta or urine. This
has to be done because the loss of N from urine starts immediately.
The commonly used chemical preservatives are gypsum & Super
phosphate.
The reaction of Gypsum with (NH4)2CO3 [The intermediate product
from decomposition of Urea present in Urine] is as follows:
(NH4)2 CO3 + CaSO4 → CaCO3 + (NH4)2 SO4
(under moist condition)
As such under Indian condition use of Gypsum to decrease Nlosses does not offer a practical solution.
33. Super Phosphate has been used extensively as a manure
preservative, since ordinary S/P contains upto 60% Gypsum
besides Mono-Ca- (P). The reaction of S/P is almost similar to
that of gypsum. The reaction of S/P with (NH4)2CO3 may be
represented as follows:
2(NH4)2CO3 + 2CaSO4 + Ca(H2PO4)2 =
Ca3(PO4)2 + 2(NH4)2SO4 + 2CO2+2H2O
Since, F.Y.M gets dry due to high temperature under
tropical conditions, the use of S/P could be safely
recommended as a chemical preservative to decrease the
It is recommended that 450 g to 900 g of super phosphate
loss of N.
should be applied per day per animal in the cattle shed .
Super phosphate should be applied in places where animal
pass urine.
34. Reinforcing of FYM :
Use of S/P as a chemical preservatives will have the following
three advantages :
(i) It will reduce the loss of N as NH3 from FYM
(ii) It will increase the % of Phosphorous in FYM (thus making
it a better balanced one)
(ii) Since TCP produced with the application of S/P to the FYM
is in organic form which is readily available to the plants,it
will increase the efficiency of P-utilization in acidic soils
that tend to fix available P of S/P into unavailable
form(chelation and liming).
35. Bio Gas:
A simple type of plant for anaerobic decomposition
of cow-dung has been devised at IARI, New Delhi, as a
result of work of Desai, Acharya, Idnani and others.
This plant yields a good quality of manure as well as a
combustible gas useful for lighting and cooking purposes.
This plant known as Gobar Gas plant consists of
digestion plant and a gas holder.
Cow-dung slurry is added daily to the digestion tank
and then spent slurry overflows from the top of the well and
collects in a pit wherefrom it is periodically removed and
added to the manure pit.
36. The production of gas varies about ½ cft - ¾th cft / lbs of
cowdung in the summer months.
The gas consists of about 50-60% methane, 30-40%
CO2 and 10% H.
It posses a calorific value of about 650 BTU/cu ft as
compared to about 400-500 BTU/Cuft of gas prepared from
coal.
A family composed of 4-5 heads of cattle can
prepare about 70-75 cuft of combustible gas per day and
get about 4-8 tonnes of air-dry sludge /year.
37. BIOGAS PLANT: Working principle:
When dung or any other organic materials is fermented in absence
of air, the combustible gas methane is produced.
In biogas plant, the fermentation is carried out in a brick lined
well which is filled with dung made in to liquid slurry with water.
This is then covered with an iron drum introduced upside down in
the well which serves to cut off air and provide the necessary
conditions for fermentation.
The gas is produced in the form of bubbles inside the drum which
gradually fills up and begins to float and rise.
The gas is then taken through a wheel cock on the top of the drum
and led to the kitchen by pipes and burned through suitable burners.
The gas production is maintained by adding 50 kg fresh dung
daily through a funnel pipe which carries the slurry to the bottom
of the well. The spent slurry (biogas slurry) over flows from the top
of the well and collects in a pit where it is periodically removed and
added to the compost.
38. Pre –requisites for setting up a gas plant
1.A minimum of 45 kg dung should be available to operate the
gas plant of 60 cubic feet (2 m3) capacity. Medium size cow,
buffalo or bullock yield 10 kg fresh dung and roughly 5
animals are needed.
2.Normally the distance between gas plant and place where
gas is to be used should be with in 20 meters (Kitchen to
gas plant ).
3.Besides cattle dung, piggery and poultry droppings if
available in sufficient quantities can also be utilized.
4.The gas plant should be located in open space in order to
receive maximum possible sunshine to ensure better
fermentation and gas production
39. Advantages of biogas plant:
1.The cow dung when processed through the gas plant yields
enough gas (combustible gas) for cooking, lighting and
good quality manure (methane free manure).
2. The manure obtained from biogas plants has higher content
of nitrogen (1.5 %) as against 0.5-0.75% found in FYM.
3. The thermal efficiency of cow dung bunt for fuel in usual
manner is around 11 % while it is 60% when burnt in
properly designed burners.
4. Biogas digest is very rich in humus content
5. The manure is free from offensive odour
6. It helps in improving the sanitation by preventing fly and
mosquito breeding.
III. BIO-GAS SLURRY: Biogas slurry is also used as bulky
organic manure produced from bio-gas plant.
40.
41.
42.
43.
44. Crops show profitable response to application of FYM
Vegetable crops
Potato,Tomato, Sweet potato, Watermelons, Radish,
Carrot, Cauliflower, Turnip, Onion, Garlic etc,
Cereals : Rice
Sugarcane, Jute
Fruits: orange, banana, grape, apple, guava, mango etc
Crops less responsive to application of FYM
Cereals: Jowar, Bajra, Wheat, Barley, oats
Oilseeds: Groundnut, Linseed, Sesamum, Castor, Coconut
Cash crops: Cotton
45. Effect of organic matter on soil properties:
I. Improvement of soil physical properties
1) Improvement of soil structure
2) Improvement of water holding capacity
3) Improvement of soil aeration
4) Reduction of soil loss through erosion
II. Improvement of chemical properties
1) Supply of essential plant nutrients in balanced ratio
2) Slow release of nutrients
3) High residual value
III. Improvement of biological activity
1) Stimulation of soil fauna and flora