Book of Extended summaries ISDA

International Conference on Reimagining Rainfed Agro-ecosystems: Challenges &
Opportunities during 22-24, December 2022 at ICAR-CRIDA, Hyderabad
tolerance paddy variety Ranjit Sub-1. Ranjit Sub-1 gave a yield of 43.5 q/ha as compared to
local check (32.0q/ha). Increase in yield over local check was 35.94%. In Dhubri, due to
water stagnation during kharif, farmers were unable to transplant HYV of paddy at
appropriate time with proper seedling age resulting in yield loss. It also revealed that flood
damages kharif paddy during July to August even when transplanting was done in time. To
overcome this situation, staggered planting high yielding paddy variety Gitesh having
flexibility in respect of seedling age from 30-60 days was demonstrated in the farmers’ field.
Gitesh gave an average yield of 39.8 q/ha as compared to local check resulting in 39.16%
more yield than local check. In Tirap district of Arunachal Pradesh, major problem in maize
cultivation was poor early growth and performance of maize due to insufficient soil moisture
and quality deterioration of cob due to coinciding of harvesting time with pre-monsoon
shower. In order to address these problems, sowing time of summer maize was advanced It
was observed that advancement in sowing time of summer maize resulted in yield of 40.7
q/ha as compared to check (29.8 q/ha). Increase in yield over local check was 36.58% with
B:C ratio of 2.19.
T2a-05aO-1339
An Integrated Index of Climate, Carbon, Yield, and Sustainability for
Identification of Resilient Management Options under Cereal-based
Cropping System
N. Subash * , D. Dutta, P.C. Ghasal, Omkar Singh and Brahmdutt
1 Indian Council of Agricultural Research-Indian Institute of Farming Systems Research (ICAR-
IIFSR), Modipuram, Meerut, Uttar Pradesh, India.
*nsubashpdfsr@gmail.com/n.subash@icar.gov.in
India is considered the "food basket of South Asia", particularly its most productive Indo-
Gangetic Plains However, projections indicate that the average climate over India is likely to
be warmer under business-as-usual (between Representation Concentration Pathway (RCP)
6.0 and RCP 8.5) by 1.7 to 2.0 O C for 2030 and by 3.3–4.8 O C for the 2080 compared to the
pre-industrial times. Precipitation is expected to increase by 5–6% in the 2030 and by 6–14%
in the 2080. Changes in temperature and rainfall patterns can have a great impact on the
organic matter and processes that take place in our soils. A farm level study found that rice
yields will decline by 8–23% in the 2050 under RCP 8.5, whereas wheat yields will also
decline by 6–29% under the current agricultural production system. Much of this variation is
due to the variability of farm-level management practices. Under tropical conditions,
continuous cropping without the addition of organic matter may further reduce soil health and
crop productivity. In locations with high initial soil organic carbon (SOC), depletion of SOC
was noticed due to continuous cropping, whereas SOC increased significantly at locations
Climate resilient agriculture for risk mitigation
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