Book of Extended summaries ISDA

International Conference on Reimagining Rainfed Agro-ecosystems: Challenges & Opportunities
during 22-24, December 2022 at ICAR-CRIDA, Hyderabad
The total residues turn-out had significant (p ≤ 0.05) and positive correlation with MWD,
WSA, WSMacA, AR, WSMacA-C, WSMicA-C, silt+clay-C and WSMacA C stock, and was
significantly (p ≤ 0.05) and negatively correlated with WSMicA, WSMicA Cstock and
silt+clay Cstock at 0-7.5, 7.515 and 15-30 cm soil depth. These results were conformity with
the earlier findings by Zeng et al., 2021.
Conclusion
The present study indicates that full conservation agriculture (NT) or partial conservation
agriculture (RT) coupled with adequate application of mineral N help in creating the
optimum environment in soil for overall improvement of the aggregate indices and enhancing
the aggregate C stocks.
References
Indoria, A.K., Srinivasarao, Ch., Sharma, K.L., and Sammi Reddy, K. 2017. Conservation
agriculture–a panacea to improve soil physical health. Curr. Sci. 112, 52-61.
Zeng, R. Wei, Y., Huang, J., Chen, X. and Cai, C. 2021. Soil organic carbon stock and
fractional distribution across central south China. Int. Soil Water Conserv. Res. 9,
620-630.
T4a-08R- 1187
Growth and Yield of Groundnut as influenced by Moisture Stress at
different Phenophases
C. Radha Kumari, B. Sahadeva Reddy, D. V. Srinivasulu, K. C. Nataraj and
Ch. Murali Krishna
Agricultural Research Station, Acharya N. G. Ranga Agricultural University, Ananthapuram -515 001
Anantapuram has the largest groundnut area among different districts of Andhra Pradesh.
It is 2 nd driest district in the country after Jaisalmer in Rajasthan with lowest recorded
rainfall 553 mm. Besides low rainfall, the variability in rainfall distribution is also very
high in the district. Some of the previous studies have shown that the pod yield of
groundnut had a curvilinear relationship with rainfall and soil moisture ( Vittal et al.,
2003). In rainfed agriculture, a need is often felt to identify suitable drought resistant
varieties of crops which have a better performance under varying soil and agro-climatic
conditions. Accordingly, the present study was conducted with the objective of assessing
the impact of dry spells at different growth stages on groundnut productivity and
identifying a suitable drought resistant variety for attaining maximum productivity in an
arid alfisol.
Resource conservation and rainfed agriculture
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