Book of Extended summaries ISDA

International Conference on Reimagining Rainfed Agro-ecosystems: Challenges &
Opportunities during 22-24, December 2022 at ICAR-CRIDA, Hyderabad
Treatment
Ground nut crop yield under trench cum bunding
Seed yield
(Qtl/ha)
Percentage
increase in
yield
Gross
returns
(Rs./ha)
Net returns
(Rs./ha)
Trench cum bunding 15.3
59,670 33,780
27.5
without trench cum bunding 12.0 46,800 22,175
Farmer Sri Nagarajaiah had cultivated Groundnut in his 1 ha farm. The yield of Ground nut
with trench cum bunding was 15.30 qt/ha, compared to that of Ground nut without trench cum
bunding (12 qt/ha). The yield of the Groundnut increased to an extent of 27.50 in average. The
farmer benefitted with additional yield of 3.30 quintal and an additional income of Rs. 11,605/-
Ploughing across slope and formation of ridges and furrows: Ploughing across slope
reduces soil surface erosion as well as any risk of nutrient mobilization on the soil surface.
Soils cultivated across the slope also hold more water in surface depressions before surface
flow is initiated. The low-cost interventions like ploughing across the slope and cultivation
through ridges and furrows were demonstrated in 15 ha, benefitting 40 farmers and 5 ha,
benefitting 25 farmers, respectively.
Crop
Effect of formation of ridges and furrows on crops yields and economics
Crop yields
(q/ha)
(Average)
Demo
Local
Economics with R&F (Rs./ha)
(Average)
Gross
Return
Net
Return
Economics without
R&F (Rs./ha)
(Average)
Gross
Return
Net
Return
Red gram BRG-2 5.8 4.3 29,000 13,500 21,500 5,900
Farmer Sri Manjunath had cultivated Groundnut in his 1 ha farm. The yield of Redgram with
Ridges and furrows was 5.8 qt/ha, compared to that of Redgram without Ridges and furrows
(4.3 qt/ha). The farmer benefitted with an additional income of Rs. 7,600/-. The technologies
of water conservation and management implemented in the NICRA villages are as follows:
New farm ponds, Check dams, Water storage structures, Desilting and widening of catchment
channels, Fixing the leakage of community tank, Desilting and widening of defunct farm
ponds, Desilting and widening of check dams. Considering the importance of harvesting water
for critical irrigation for saving crop during drought in the villages, 108 farm ponds have been
created. The total rainwater storage capacity of the 108 farm ponds dug during the project
implementation is 30,950 Cu m and it has benefited over 119 farmers. The total water storage
capacity of the newly constructed 5 check dams is 6,750 Cu m and has benefited 11 farmers.
The total rainwater storage capacity of the 13 percolation ponds for underground recharge is
1,750 Cu m and has benefited over 13 farmers. The total water storage capacity of the 18
rejuvenated farm ponds is 8,230 Cu m benefited 23 farmers. The total water storage capacity
14 | Page Resilience through land and water management interventions, water management and governance