System of Rice Intensification – Dealing with Climate Change
Agriculture still is a significant source of livelihood in the countries of South Asian region. The pressure on farm sector has however been increasing due to multiple reasons: lower yield, fragmentation of land holdings, poor irrigation, depletion of ground water, inadequate extension services / supply of inputs, poor post harvest management, lack of value addition at the producers level and a long supply chain involving a number of intermediaries. The resultant woes, unemployment / underemployment, migration to cities in search of a better life.
There is a strong need to assist the farmers to increase productivity to move up the value chain in stimulating the farm economy and employment demand. Interventions such as, establishing market linkages, providing access to micro credit, creation of irrigation facilities/ rain water harvesting structures, efficient water use through micro-irrigation, managing natural resources efficiently etc. can generate better farm as well as non farm sector yields and change the rural landscape for better.
Dr. Subir Ghosh, who has worked extensively on the management side of agriculture and allied sectors, in his following series of articles, writes to offer sustainable agricultural practices in this context.
SRI: System of Rice Intensification is a methodology which works on less water and some technical changes such as young age nursery, line sowing with wider spacing, weeding for both weed removal and aeration purposes. The best part of SRI is it uses nearly 30 -40% less water than the traditional paddy cultivation practice, which is a major boost for promoting the methodology in water stress situation. The present drought like situation across the country and more specifically in the rain rich states has sent alarming bells across. Paddy, the main staple crop, which is all rainfed across the states has still not being fully transplanted or directly sown because of the low intensity of rainfall. This would create a major issue on the food security.

The advantages: The experiences of promoting SRI has shown that SRI as a methodology has great potential to overcome the food insecurity in the rather food insecure regions. The productions have gone from 4 ton/ha to 10 ton/ha. It has also been studied that SRI helps in reducing the water requirement of paddy because of the practice of farm management involving, furrowing, raising the beds and channels for excess water exits. This shows that in the rain stress situation, the crop survives well and produces much better than traditional practices.
In case of delayed monsoon, where there is no rainfall upto mid July, the farmers involved in promoting SRI do not have much to worry on the nursery preparation. They can wait for some amount of good rains and then go for the nursery beds. As the saplings only have to be 9-12 days old, it does not need much water to grow the nursery and manage it for long time as done in traditional practice. This saves lot of time and resource with the farmers. With good rains for some days and being able to prepare their paddy lands, the farmers are able to transplant the paddy based on the line sowing technique. Thus low rainfall in initial periods does not make major issues for the SRI methodology of transplanting. This means a dry spell for a period of 15-20 days could be taken by the crop through the farm management practices.
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