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0736 Research on System of Rice intensification - Initial Experiences
1. Research on System of Rice Intensification – Initial Experiences . B. C. Viraktamath Project Director Directorate of Rice Research, Hyderabad ______________________________ E- mail: bcvmath@drricar.org
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3. 361.1 439.2 548.2 646.3 1012.4 1200 1400 65.46 85.00 111.53 146.55 201.6 253 305 90 130 100 In Millions Population (million) Food grain (mt) Rice (mt) Population, production of food grains, and rice trends and projections Rice Food grains 0 400 800 1200 1600 1951-60 1961-70 1971-80 1981-90 1999-00 2009-10 2024-25 211.3 (2002) 93.3 (2002)
12. Grain yield under different methods of crop establishment – Kharif 2004 Location SRI<NT SRI=NT SRI>NT SRI>ICM>NT SRI=ICM
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14. Crop establishment method for increasing yield in TP rice (SRI, ICM & TP), Kharif 2006 Locations - 27 Significant at 21 locations SRI method promising at 13 out of 21 locations ICM comparable with SRI – 3 (KNP, UMM, MLN) Standard transplanting at 5 locations (MND, KRK, MRT, CHP, PDY) Mean increase in grain yield across locations (21) With SRI - 11% With ICM - 8% SRI performance is better when nursery sowing date is same as compared to transplanting date.
15. Nursery dates are same Transplanting dates are same Performance of different methods of crop establishment in different regions
19. Root dry mass (g m -3 ) Root length density (cm m -3 ) Mean Root Mass and Root Length Density, Rabi 2006, DRR Fields Differences: ** Differences: *