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International Conference on Reimagining Rainfed Agro-ecosystems: Challenges & Opportunities during 22-24, December 2022 at ICAR-CRIDA, Hyderabad 28.48% in rabi sorghum and 12.86% in safflower due to inter cultivation during the 2021-22 cropping season. As a mid-season correction to mitigate dry spells, the interventions like repeated inter cultivation, supplemental irrigation and foliar spray were implemented. Foliar application of KNO3 @ 0.5% observed higher yields with an increase of 20-26% in various crops than in no sprays. In a terminal drought situation, protective irrigation from a farm pond or other irrigation source saves crop life and stabilizes yield. The impact of RTCP on coping with aberrant weather situations was also studied in various AICRPDA centres (Srinivasa Rao et al., 2013). Effective drought preparedness and management is a planning and response process to predict drought and establish timely and appropriate responses to minimize the negative consequences of the drought. We demonstrated simple and easily implementable preparedness practices like in situ rainwater harvesting practices, climate resilient intercropping systems, integrated farming systems, energy management and other agronomic practices in NICRA village to cope with weather aberration and enhance yields. The villagelevel institutions like Village Climate Risk Management Committee (VCRMC) and the custom hiring center (CHC) established in NICRA village can contribute immensely to community participation in the successful implementation of NICRA activities. Conclusion Technology development in agriculture address weather aberrations, which will make agriculture more climate resilient. The different RTCPs and preparedness implemented under NICRA observed better crop yield and profitability under various weather aberrations. References Srinivasarao, Ch., Ravindra Chary, G., Mishra, P.K., Nagarjuna Kumar, R., Maruthi Sankar, G.R., Venkateswarlu, B., and Sikka, A.K., 2013. Real time contingency planning: Initial experiences from AICRPDA. All India Coordinated Research Project for Dryland Agriculture (AICRPDA), ICAR-CRIDA, Hyderabad, India. 63 p. T2a-08R-1222 Performance of Pigeon pea based Intercropping Systems under Changing Climatic Conditions M. Sudhakar, G. Dhanalakshmi, K.V. Ramanaiah, E. Ravi Goud SHE &CS, Krishi Vigyan Kendra, Yagantipalli. Kurnool dist. A.P-518124 Adverse weather conditions like delay onset of rains and prolonged dry spells during the crop period is very common in rainfed situation. Such situation results in economic losses to the farmers due to partial or total failure of the sole crops. Pigeon pea is being cultivated in an area 258 | Page Climate resilient agriculture for risk mitigation
International Conference on Reimagining Rainfed Agro-ecosystems: Challenges & Opportunities during 22-24, December 2022 at ICAR-CRIDA, Hyderabad of 45,000 ha and yields are limited by the amount and distribution of rainfall during monsoon period. Pigeon pea is a late maturing, tall growing, wide spaced crop with deep root system can accommodate rapidly growing, short duration and short statured crops like millets and pulses. To develop climate resilient alternative crop management systems and to reduce the impact of crop failure due to drought. During the years 2016-2018 eighteen pigeon pea based intercropping systems were assessed under rainfed situation ie pigeon pea + greengram (1:5), pigeon pea + blackgram(1:5),T3: pigeonpea + setaria(1:5 ) and T4: Pigeonpea Sole). The results indicated that, among the cropping systems, intercropping of pigeonpea + greengram (1:5) (1263 kg ha-1), pigeon pea + setaria(1:5) 1244kg/ha and blackgram with pigeon pea (1198 kg ha-1) resulted in maximum pigeon pea equivalent yield over sole crop of pigeon pea (986 kg /ha). The LER is high in pigeon pea + setaria intercropping system (1.67) as compared to other inter cropping systems. Among all intercropping Systems pigeon pea + setaria recorded highest net returns (26826 Rs/ha) followed by pigeon pea + greengram (24360Rs/ha) compared to pigeonpea + blackgram and sole pigeonpea. From the results it is evident that intercropping in rainfed areas stabilises the productivity and enhance the returns in terms of increased net returns and benefit cost ratio as well. Intercropping also act as insurance under the conditions of crop failures due to pest incidence, weeds and changing monsoon conditions. Climate resilient agriculture for risk mitigation T2a-09R-1224 Does Rise in Atmospheric Temperature and Carbon Dioxide Adversely affect Maize Growth in Acid Soils of Northeast India? Ramesh Thangavel*, B.U. Choudhury, A. Balusamy, M. Prabha Devi, Joymati Chanu, M. Chakraborty, S. Hazarika and V.K. Mishra Division of System Research and Engineering, ICAR Research Complex for NEH Region, Umiam, Meghalaya-793103 *rameshssac@yahoo.co.in Climate change was a myth or speculation in earlier times. However, now world has recognised that climate change is a fact. Today, the atmospheric concentration of CO 2 has risen to more than 400 ppm, warming the atmosphere by 0.84 o C (Vanaja et al., 2015). Global warming will have an impact on crop productivity. Plant development will be aided by increased photosynthesis and fertilisation effects brought on by elevated atmospheric CO 2 (Kim et al., 2007). Increased temperature will result in physiological problems and heat injury, which will lower yield (IPCC, 2014). Depending on the regions, increased warmth brought on by increased CO 2 will have a significant impact on the production of food grains. Food grain production is expected to decline by up to 30% in tropical and subtropical nations like India as temperatures rise by 1.0 to 2.0 o C (IPCC, 2014). Therefore, adaptation strategies to sustain the crop productivity in the region is in urgent need. However, limited state of the 259 | Page
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Extended Summaries 22-24 December,
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Citation Rama Rao, C.A., Srinivasa
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Resilience through land and water m
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International Conference on Reimagi
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Theme- 2 Ecosystem based approaches
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