Book of Extended summaries ISDA

International Conference on Reimagining Rainfed Agro-ecosystems: Challenges &
Opportunities during 22-24, December 2022 at ICAR-CRIDA, Hyderabad
recorded as per treatments and expressed in q ha -1 . The economics was calculated as per
standard procedures.
Results
Maize-rabi crops sown on raised bed produced significantly higher maize equivalent yield
(93.13 q/ha), system return (Rs 123543/ha), and B: C ratio (2.34) over ridge and furrow sown
and flatbed sown crop. Different tillage practices are suitable for in-situ moisture conservation
such viz, ridge and furrow system, zero tillage, raised beds, broad beds are profitable (Rejani
et al., 2017 and Hariom et al., 2013). Conservation tillage techniques, which involve soilsurface
crop residue management systems with minimum or no tillage (Kar et al. 2021) are
widely accepted as sustainable crop management that reduces soil and water losses, restores
organic matter, increases biodiversity and fertility in degraded agriculture soils (Novara et al.
2021).Maize–Mustard sequence sown on raised bed recorded significantly higher maize
equivalent yield (102.10 q/ha), system return (Rs 135297), system B: C ratio (2.60), and system
RWUE (13.32 kg/ha-mm) but found at par with Maize–Chickpea sequence sown on a raised
bed. Similarly, Hariom et al., 2013. Reported that raised bed planting with residues is helpful
for water stress management in addition to their other advantages. The surface soil moisture
content at maize harvest was 7.87 and 6.67% higher in a Raised bed and Ridge & Furrow over
a Flatbed whereas, subsurface moisture was 18.90 and 18.23% higher. Similarly, after the
harvest of rabi crops surface soil moisture content was 15.87 and 9.64 % higher in the Raised
bed and Ridge & Furrow over the Flatbed whereas subsurface moisture was 27.90 and 23.95
% higher over the flatbed.
Conclusion
It may be concluded that the Maize–Mustard sequence sown on raised bed recorded
significantly higher maize equivalent yield, system return, system B: C ratio, and system
RWUE and retained higher soil moisture content.
References
Choudhary S., Pramanick B., Maitra S. and Kumar B. (2021) Tillage Practices for Enhancing
Crop Productivity under Dryland Conditions, Just agriculture newsletter, 1:5.
Hariom, Ansari M.A., and Rana K.S. (2013) Productivity and nutrient uptake of mustard
influenced by land configuration and residual and directly applied nutrients in mustard
under limited moisture conditions. Indian Journal of Agricultural Sciences 83 (9): 933-
938.
Kar, S., Pramanick, B., Brahmachari, K., Saha, G., Mahapatra, B.S., Saha, A. and Kumar, A.
(2021) Exploring the best tillage option in rice based diversified cropping systems in
alluvial soil of eastern India. Soil and Tillage Research, 205(104761): 1-10.
Resilience through land and water management interventions, water management and governance
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