How has the application of scientific knowledge improved agriculture in the Arid Zones Dry lands and hilly regions of our country
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by adding the scientific knowledge there is a great improvement in cultivation by knowing the fertilizers to add, improve soil fertility, types of vegetation to grow on particular types of soil. The green revolution triggered this situation in India and gave a momentum in clearing out dry arid area. They use new seeds which are capable of growing in harsh condition even the wit of irrigation has been improved. This has in all affected the agriculture of India.
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Anonymous:
That altered management practices can induce more productive, resilient phenotypes from existing rice plant genotypes has been seen in over 50 countries. The reasons for this improvement are not all known, but there is a growing literature that helps account for the improvements observed in yield and health for rice crops using SRI.
The ideas and practices that constitute SRI were developed inductively in Madagascar some 30 years ago for rice. They are now being adapted to improve the productivity of a wide variety of other crops, starting with wheat, finger millet and sugarcane. Producing more output with fewer external inputs may sound improbable, but it derives from a shift in emphasis from improving plant genetic potential via plant breeding, to providing optimal environments for crop growth.
The adaptation of SRI experience and principles to other crops is being referred to generically as the System of Crop Intensification (SCI), encompassing variants for wheat (SWI), maize (SMI), finger millet (SFMI), sugarcane (SSI), mustard (rapeseed/canola)(another SMI), teff (STI), legumes such as pigeon peas, lentils and soya beans, and vegetables such as tomatoes, chillies and eggplant.
The evidence reported below has drawn heavily, with permission, from a report that Dr. Uphoff prepared on the extension of SRI to other crops (Uphoff 2012). Much more research and evaluation needs to be done on this progression to satisfy both scientists and practitioners. But this gives an idea of what kinds of advances in agricultural knowledge and practice appear to be emerging.
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