0914 Dynamics of Rice Intensification System in Nepal
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TAD, Wageningen UR
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Plus de SRI-Rice, Dept. of Global Development, CALS, Cornell University
Plus de SRI-Rice, Dept. of Global Development, CALS, Cornell University (20)
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0914 Dynamics of Rice Intensification System in Nepal
- 1. Dynamics of Rice Intensification System in Nepal Presented by Rajendra Uprety TAD/Wageningen UR
- 2. Rice in Nepal (2007) Total area: 1.43 million ha Production: 3.68 million tons Productivity: 2.557 tons/ha Region Area (ha) Production (tons) Productivity (t/ha) Mountain 62,263 120,172 1.93 Hills 367,710 933,852 2.54 Terai (plains) 1,009,552 2,626,815 2.60 Morang 81,360 242,476 2.98 Dhankuta 8,145 20,750 2.54
- 4. Objective The objective of this study was to analyze social mechanisms of SRI and non-SRI rice management systems in Nepal.
- 6. Findings
- 11. Rice farming system Farmers Land ownership status Compost/fertilizers Machine/ tools Investment Irrigation facility Labor availability Technical support Variety/seed Land/ land type Distance of farm Cropping system Land owners
- 16. Labor, irrigation and spacing
- 20. Distance, weeding time and SRI practices adopted by farmers
- 23. Rice Farming Systems and their Dynamics
- 24. SRI Conventional Conventional seedlings Double transplanting seedlings SRI seedlings
- 25. Seedling age, density and water use
- 29. Water, compost and labor use situation
- 33. Yield distribution of SRI and conventional methods
- 34. Seedling age, fewer seedlings/hill, wider spacing, and AWD irrigation: positive effect on rice yield.
- 38. Most of the SRI farmers were owner-cultivators Farmers used compost only on their own land The amount of compost used was not sufficient to produce good yield Combination of manure and fertilizers produced good yield
- 41. Conclusions
- 42. Reliable irrigation Land ownership Labor availability Male/female labor Technical support System of Rice Intensification Water uncertainty Lease land Labor scarcity Delay transplanting Weeder availability Nearness of land Distance of the land Lack of technical support Hire labor Conventional system Partial SRI Double transplanting
- 47. Crop duration (from seed to seed) of different rice varieties using SRI methods compared with conventional methods (in days), Morang District, Nepal, 2008 Varieties Conventional duration SRI duration Difference Bansdhan/Kanchhi 145 127 (117-144) 18 (28-11) Mansuli 155 136 (126-146) 19 (29-9) Swarna 155 139 (126-150) 16 (29-5) Sugandha 120 106 (98-112) 14 (22-8) Radha 12 155 138 (125-144) 17 (30-11) Barse 3017 135 118 17 Hardinath 1 120 107 (98-112) 13 (22-8) Barse 2014 135 127 (116-125) 8 (19-10)
- 48. Thank You
Notes de l'éditeur
- Productivity t/ha: SRI=5.9 (3.4-8.4), Conventional=3.4 (1.3-5.4) t/ha
- From report by Rajendra Uprety, District Agricultural Development Office, Biratnagar, Nepal – for Morang District. Available from SRI home page on the web. Agronomists should be very interested in how more than doubled yield can be achieved in three weeks less time than ‘normally’ expected for this variety. The World Wide Fund for Nature (WWF) evaluation of SRI in Andhra Pradesh state of India, conducted by ANGRAU, the state agricultural university, reported 7-10 day shorter maturation of SRI crops. In Cambodia, this has also been seen.