Book of Extended summaries ISDA

International Conference on Reimagining Rainfed Agro-ecosystems: Challenges & Opportunities
during 22-24, December 2022 at ICAR-CRIDA, Hyderabad
S4
S5
Cotton + Green
gram (1:1) 12.97
Cotton + Black
gram (1:1) 12.56
SE (m)
CD at 5 %
25.65 5.91 230 20.61 409 12.35 204.94 40.31 42.97
24.72 5.82 226 20.29 404 12.22 202.25 38.30 40.99
0.17 0.32 0.090 2.41 0.46 2.8
4
0.52 0.96 0.267 7.17 1.35 8.4
4
0.06 2.52 1.33 1.42
0.18 7.48 3.94 4.21
C. Interaction effect NS NS NS NS NS NS NS NS NS NS
Initial value 4.96 204 14.90 379 8.27
Sustaining Soil Health Through Organic Farming
R. S. Choudhary* and Mahendra Singh
Krishi Vigyan Kendra, Sirohi, Rajasthan
Directorate of Extension Education, Agriculture University, Jodhpur, Rajasthan
*agroudr2013@gmail.com
T4a-49P-1427
In 2050, the world population will reach ~10 billion, an increase of 30%. According to the UN,
food insecurity is one of the greatest challenges facing us today. Soil is a precious natural
resource, about 98% of our food—directly or indirectly—comes from soil. Therefore, sustaining
soil health/sustainable soil management (SSM) is essential in addressing food security and socioeconomic
and environmental issues. It can be inferred that enhancing carbon sequestration in soil
is associated with increased biomass and, therefore, to soil fertility. Better quality soil ensures
better yields; and exactly for this reason, we have been manipulating the natural soil with the
reckless use of chemical fertilizers that provide additional nitrogen, phosphorous and potassium
(NPK), leading to over fertilization and diminishing yields. Hence, organic farming aims to
attain long-term sustainability since it is based on ecologically sound practices to provide
nutrients for crop growth and thereby, in the long term, it ensures productivity gains by
improving soil health. Presence of soil organic matter and soil microbial population are primarily
useful indicators of soil health and productivity of crops. It is now a well-established fact that
organically managed soil exhibits greater soil organic carbon and total nitrogen, lower nitrate
leaching and biological soil quality than conventionally managed soil. Soil health management
through organic approaches are needed for maintaining the sustainability of agriculture as well as
to maintain the coordination with nature.
679 | Page Resource conservation and rainfed agriculture