Dry farming is cultivation of crops in regions with annual rainfall less than 750 mm that require moisture conservation practices. About 70% of rural populations live in dry farming areas and depend on crop success or failure for their livelihood. Currently, dryland crops produce as much food as irrigated crops but from 3 times the land area. New strategies must be developed to make dryland ecosystems more productive and sustainable. The history of dryland agriculture began with early civilizations in places with reliable water supplies. Systematic dryland cultivation began around 1850 in areas like the USA and India. Over time, research stations were established and packages of practices were developed for different regions to improve dryland agriculture techniques.
this slide includes recent approaches to evaluate cropping system.
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this slide includes recent approaches to evaluate cropping system.
It includes system profitability,relative production efficiency,land use efficienct(LUE),Calculation of LUE,energy efficiency,specific energy,Rotational intensity,Cropping intensity,Multiple cropping index(MCI),Land equivalent ratio (LER),Relative yields total (RYT),Crop equivalent yields (CEY),Relative Spread Index
Management Practices for Improving Water Use Efficiency.pptxanju bala
Water use efficiency
Production (of crops) per unit of water applied.
Expressed in kg/ha-mm.
Two distinct terms are used in expressing water use efficiency:
Crop water use efficiency: It is the ratio of crop yield (Y) to the amount of water depleted by the crop in the process of evapotranspiration (ET).
Crop WUE = Y/ET
Field water use efficiency: It is the ratio of crop yield (Y) to the total amount of water used in the field (WR), which include ET, deep percolation and that used in plant metabolic processes.
Field WUE = Y/WR
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Management Practices for Improving Water Use Efficiency.pptxanju bala
Water use efficiency
Production (of crops) per unit of water applied.
Expressed in kg/ha-mm.
Two distinct terms are used in expressing water use efficiency:
Crop water use efficiency: It is the ratio of crop yield (Y) to the amount of water depleted by the crop in the process of evapotranspiration (ET).
Crop WUE = Y/ET
Field water use efficiency: It is the ratio of crop yield (Y) to the total amount of water used in the field (WR), which include ET, deep percolation and that used in plant metabolic processes.
Field WUE = Y/WR
GIS and Remote Sensing in Diagnosis and Management of Problem Soil with audio...KaminiKumari13
GIS and Remote Sensing in Diagnosis and Management of Problem Soil for agriculture, soil science, agronomy, forestry, land management and planning with audio by Dr. Kamini Roy
Definition and introduction of fertilizer use efficiency , Causes for Low and Declining Crop Response to Fertilizers and FUE.Methods to increase fertilizer use efficiency.
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Dryland farming, current status, issues, practices, types of dryland agriculture, methods of dryland farming, water conservation, management of dryland, improving dryland productivity
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Water: Rice is often grown in flooded or marshy areas. There are two main types of rice cultivation based on water management: flooded (paddy fields) and rainfed (upland fields). Flooded rice fields are common in regions with ample water resources, while rainfed rice cultivation relies on natural rainfall.
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Gowing of crop entirely under rainfed conditions is known as dryland agriculture.
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Since the loophole-free Bell experiments of 2020 and the Nobel prizes in physics of 2022, critics of Bell's work have retreated to the fortress of super-determinism. Now, super-determinism is a derogatory word - it just means "determinism". Palmer, Hance and Hossenfelder argue that quantum mechanics and determinism are not incompatible, using a sophisticated mathematical construction based on a subtle thinning of allowed states and measurements in quantum mechanics, such that what is left appears to make Bell's argument fail, without altering the empirical predictions of quantum mechanics. I think however that it is a smoke screen, and the slogan "lost in math" comes to my mind. I will discuss some other recent disproofs of Bell's theorem using the language of causality based on causal graphs. Causal thinking is also central to law and justice. I will mention surprising connections to my work on serial killer nurse cases, in particular the Dutch case of Lucia de Berk and the current UK case of Lucy Letby.
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Professional air quality monitoring systems provide immediate, on-site data for analysis, compliance, and decision-making.
Monitor common gases, weather parameters, particulates.
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1. Significance and scope of dryfarming in
India and
History of dryland agriculture
Presented by
Sandra Joseph
2. Dry farming is cultivation of crops in regions with annual
rainfall less than 750 mm.
• Crop failure due to prolonged dry spells.
• Arid regions with a growing season less than 75 days.
• Moisture conservation practices are necessary.
3. About 70% of rural population lives in dry farming areas and
their livelihood depend on success or failure of the crops.
In future the additional food has to come mainly from the
drylands.
At present, 3 ha of dryland crop produce cereal grain
equivalent to that produced in one ha irrigated crop.
The challenges of the present millennium would be to
produce more from less of drylands while ensuring
conservation of existing resources.
4. • New strategies have to be evolved which would make the
fragile dryland ecosystems more productive as well as
sustainable.
• In order to achieve evergreen revolution, we shall have to
make grey areas (drylands) as green through latest
technological innovations.
• Dryland offers good scope fro development of Agroforestry,
Social forestry, Horti-Sylvi-pasture , etc which will not only
supply food, fuel to the village people and fodder to the cattle
but forms a suitable vegetative cover for ecological
maintenance.
5. “Intensive irrigated farming is an imperative for survival; but
improved dryland agriculture is essential for equity” – Dr.
Gautam, Former DG, ICAR
7. • As water is essential, human settlements started in places
where water supply was assured.
• Many ancient civilizations like Indus, Mesopotamia, Maya and
Inca were destroyed mainly because of water scarcity and
loss of soil fertility.
• Organised crop farming which we see today began much later
and the systematic cultivation under dryland situation started
around 1850.
• Improved technique of dryland first started in USA.
• Wheat used to be cultivated along Malad creek.
• By 1863, the water of that creek started saline. Under this
situation farmers desperately started cultivating this crop
without artificial application of water.
8. • In 1894, Colorado State University initiated experiments on
dry farming and established a sub station at Cheyyeni wells.
• Upto 1916, farmers paid little attention to water conservation.
But they experienced severe drought consecutively for
several years. This led them to think about proper moisture
conservation.
• A. K. Y. N Aiyer listed the important practices followed by
farmers of dryland in India.
• Between 1923 and 1943 some package of practices developed
from studies on crop production under dry situation.
9. • Depending on the province these packages were named as
– Bombay dry farming method
– Madras dry farming method
– Hyderabad dry farming method
– Punjab dry farming method
• 1923 Dryland Research Station at Manjri, Tamhane to Kanikar
1926
• 1933 RS at Bijapur and Solapur
• 1934 RS at Hagari and Raichur
• 1935 RS at Rohtak (Punjab)
10. • 1953 Establishing Central Soil Conservation Board
• 1955 Dry Farming demonstration Centres started
• 1970 23 Research Centres under AICRPDA
• 1972 Establishment of ICRISAT
• 1976 Establishment of Dryland Operational Research Projects
• 1983 Starting of 47 model watersheds under ICAR
• 1984 Initiation of World Bank assisted Watershed
Development Programmes in four states. Establishing Dryland
Development Board in Karnataka
• 1985 Birth of Central Research Institute for Dryland
Agriculture at Hyderabad
11. Reference:
Dryland Farming – Arupratan Gosh , P. K Jana
Technological innovation in Dryland Farming System – Sharma
Anilkumar
Crop Production – S. C. Panda