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2 nd National Symposium 3 rd -5 th October, Agartala. System of Rice Intensification in Andhra Pradesh Department of Agriculture Andhra Pradesh. General scenario of rice. Rice is the most important food crop of India, and it occupies 23.3% of gross cropped area of the country.
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2nd National Symposium3rd -5th October, Agartala System of Rice Intensification in Andhra Pradesh Department of Agriculture Andhra Pradesh
General scenario of rice • Rice is the most important food crop of India, and it occupies 23.3% of gross cropped area of the country. • Rice contributes 43% of total food grains production. • AP stands 6th in area, 3rd in production, and 2nd in productivity and contributes nearly 12% of the national rice production. • AP farmers grow rice annually in an area of 3.98 M Ha in 22 districts.
Need for SRI • Depletion of water resources • Stagnating rice productivity • Growing importance of organic agriculture • Increasing production costs • Need best utilization of family labour for small and marginal farmers.
Six key principles of SRI • 1. Young-aged seedlings • 2. Careful single seedling transplanting • 3. Wider spacing • 4. Water management • 5. Weeding • 6. Compost/organic manuring
SRI technology uses: • Less water • Less seed (2 kg/ac) • Fewer plants per unit area (25 x 25 cm) • Less chemical fertilizers • More organic manures • Less pesticides
Tillering is greatly increased: • 30 tillers per plant are fairly easy to achieve • 50 tillers per plant are quite attainable • With really good use of SRI, individual plants can have 100 fertile tillers or even more. Why? Because there is no set-back to plant growth thanks to early and careful transplanting and no die-back of roots • Maximum tillering occurs concurrently with panicle initiation • With SRI, a positive correlation is found between the number of panicles per plant and number of grains per panicle
Increased tillers Increased tillers
Benefits of SRI 1. Higher yields – of both grain and straw 2. Reduced duration of crop cycle (by 10-15 days) 3. Less chemical inputs 4. Less water requirement 5. Less chaffy grain (%) 6. Grain weight increased without change in grain size 7. Higher head rice recovery rate 8. Withstands cyclonic gales 9. Soil health improves through biological activity
Observations in these demonstrations • Increase in yield by 26.68% • Reduction in cost of cultivation • Lower seed rate • Less use of fertilizers and pesticides • Fewer non-filled grains • More grain weight • More rice recovery • Non-lodging • Harvest early by 10 days
Action Plan for 2007-08 : • Kharif 2007 - Rs. 91.945 lakhs • Incentive of Rs. 3500/- per acre demonstration
SYSTEM OF RICE INTENSIFICATION( SRI ) CULTIVATION PARTICULARS, 2003-04 TO 2006-07 IN ANDHRA PRADESH
Productivity recorded under SRI demonstrations Average increase in yield – 26.68%
CONSTRAINTS IN ADOPTION OF SRI • No clear specifications regarding the designs of markers and weeders most suitable under different soil types • Labourers are facing difficulty to carry out the SRI practices, particularly in weeding with present-designed weeder. • Farmers are facing operational difficulties to adopt SRI in larger areas. • There is no specific recommendation of percentage of water saving by adopting SRI technology.
SUGGESTIONS FOR SCALING UP SRI METHOD • Seed Village concept should be encouraged with SRI • Mass media can be utilized for wide publicity • Capacity-building of farmers, tenant farmers, extension staff, NGOs, and labourers is needed. • Studies on varietal trails should be conducted with SRI • Formulating location-specific package for SRI • Designing of mechanized weeder suitable for different soils • Supply of suitable mechanized weeders and markers on 90% subsidy • Supply of paddy puddler and levelers on 75% subsidy • Intensive training for labourers who are involved in SRI Cont….
SUGGESTIONS FOR SCALING UP SRI METHOD • Supply of recommended chemical fertilisers on 50% subsidy and vermicompost on 75% subsidy to SRI farmers • Supply of knapsack hand compression sprayers on 75% subsidy to SRI farmers • Organising of field trips and exposure visits • Supply of green manure seeds on 75% subsidy • Supply of power tillers on 50% subsidy • Research on saving of water in SRI technology • Research on uptake of nutrients in SRI technology