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- W73608923 abstract "System of Rice Intensification (SRI) as an alternate rice cultivationmethodology, developed in Madagascar 25 years ago, is gaining wider acceptancein many countries including India. SRI method claims to greatly enhance waterproductivity and grain yield. But there is lack of understanding of scientificprinciples underlying and synergetic effects of the principles followed in SRI,especially in Indian conditions. The present paper is intended to discuss aboutsignificance and necessity of SRI along with performance of SRI at about 25locations across the country for a period of four years. SRI was found to record 7-20% higher grain yield over the traditional irrigated transplanted rice in differentagro-climatic situations of the country. SRI also recorded higher nutrient useefficiency without depleting soil available nutrients as compared to conventionaltransplantingafter two seasons of the study. The varieties having better tilleringability as well as hybrids (KRH 2, HRI 126, PHB 71 and DRRH 2) were foundpromising and recorded higher grain yield over the high-yielding varieties andscented cultivars with moderate tillering. Root volume, dry mass anddehydrogenase activity in soil enhanced by 7-25% (measure of microbial activity)were found to be higher in SRI, compared with conventional method. There wasreduction in seed rate by 80%, nursery area also obviously, water requirementby 29% and growth duration by 8-12 days, thereby enhancing water productivityand per day productivity of rice cultivars in SRI, which also proved to be helpfulin producing more seed for faster seed multiplication and also quality seed forhigher productivity. Water saving alone should be a strong justification for theadoption of SRI wherever water is not abundant. Ther~ is a need for furtherenhancing the rice productivity in SRI by identifying suitable cultivars, modifyingpractices to suit local agro-climatic conditions and understanding long termsynergic effects among different practices." @default.
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- W73608923 date "2013-01-01" @default.
- W73608923 modified "2023-09-29" @default.
- W73608923 title "System of Rice Intensification: Its Present Status, Future Prospects and Role in Seed Production in India" @default.
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