Book of Extended summaries ISDA

International Conference on Reimagining Rainfed Agro-ecosystems: Challenges &
Opportunities during 22-24, December 2022 at ICAR-CRIDA, Hyderabad
check was 95.45%. In Tirap, Arunachal Pradesh, the main climatic vulnerability was low soil
moisture status and drought like situation during rabi season. So jalkund, water harvesting
structure were constructed in farmers’ farm for giving supplemental irrigation to rabi crop
namely potato (var. Kufri giridhari). The farmers were able to get an average yield of 150.6
q/ha with B.C ratio of 2.29. Generally, the farmers of Tirap district did not apply any
chemical fertilizers or organic nutrients in their field. So, fertility status or soil health of the
district is decreasing year after year. Therefore, to maintain or enhance soil health, an
intervention on preparation of vermicompost and its application in French bean (variety Pusa
parvaty) was introduced in farmers’ field during 2018-19. It was observed that yield of local
check was 29.2 q/ha whereas that of demonstration was 42.8 q/ha. Increase in yield over local
check was 46.58% with B.C ratio 3.63. During 2019-20, in KVK Dhubri, Assam, low cost
vermicomposting unit with raised bed was introduced in farmers’ field. Reason behind the
intervention was to prevent the vermicomposting unit from flood. From a unit of 6×3×2.5
cubic ft, net return of Rs. 6000.00 with B.C ratio of 2.57 was obtained. In KVK East Sikkim,
Sikkim, no till cultivation of garden pea in rice fallow was introduced in farmers’ field with
an aim to conserve soil moisture, save time and reduce cost of cultivation. Farmers were able
to get an average yield of 57 q/ha with B.C ratio of 2.40. KVK East Sikkim also introduced
bio mulching in ginger var. Bhaisey for reducing weed growth, moisture conservation and to
get quality produce. Yield of local check obtained was 76.9 q/ha whereas yield of
demonstration was 125.9 q/ha.
T2a-34P-1562
Climate Smart Crop Diversification through Paddy-Pea Cropping System under Raised
Beds in Lowland Rice Fallow
Meghna Sarma, Mokidul Islam, and Elgiva Wanshnong
Krishi Vigyan Kendra, Ri Bhoi, ICAR Research Complex for NEH Region, Umroi Road, Umiam-
793103, Meghalaya, India
Rice fallows occur due to the early withdrawal of monsoon rains leading to soil moisture
stress at planting time of winter crops, water logging, and excessive moisture during
November/December, lack of appropriate varieties of winter crops for late planting, and other
socio-economic problems. In India, about 11.7 million hectares remain fallow after the
harvest of rice, out of the 44.6 million ha of total rice area of the country. Approximately
82% of the rice fallow lands are concentrated in the states of Eastern Uttar Pradesh, Bihar,
Chhattisgarh, Jharkhand, Madhya Pradesh, Orissa, West Bengal, and North East India (Layek
et al. 2014). Low productivity, crop diversification, employment, and income are the major
constraints of existing production systems of the high-rainfall North-Eastern Hill Region of
India (Das et al. 2014). Crop diversification may enhance profitability, reduce pests, spread
out labour more uniformly, and reduce risks from aberrant weather by different planting and
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Climate resilient agriculture for risk mitigation