Science Forum Day 3 - Zainul Abedin - Integrating fish in rice-based farming systems in Bangladesh
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Science Forum Day 3 - Zainul Abedin - Integrating fish in rice-based farming systems in Bangladesh

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Science Forum Day 3 - Zainul Abedin - Integrating fish in rice-based farming systems in Bangladesh Presentation Transcript

  • 1. Integrating fish in rice-based farming systems in Bangladesh
    M. Zainul Abedin and S.M.A. Sattar
    IRRI Bangladesh Office
    July 2011
  • 2.
  • 3. Rice and Fish had been and are integrated
    on the plates
    and
    In the rice fields …. Since ????
  • 4. Plankton growth
    INTEGRATED
    RICE+FISH – PULSES+LIVESTOCK
    SYSTEM
  • 5. Natural rice-fish culture
    Is Threatened by:
    • High population pressure – demand for more - over harvesting -Decreasing stocks of natural (wild) fish
    • 6. “Green revolution and “development” initiatives saw
    • 7. changing land use patterns
    • 8. indiscriminate use of pesticides
    • 9. interference with natural breeding and feeding grounds – sluices, roads, etc.
    • 10. Drying up river systems and water bodies
    • 11. LACK OF TECHNOLOGIES TO COPE UP WITH THE CHANGING CIRCUMSTANCES AND INCREASING DEMANDS
  • ? Where is FISH???
  • 12. Research and development of rice fish culture in Bangladesh
    Organizations involved:
    BFRI, BRRI, Universities, Deptt. of Fisheries NGOS, WFC, IRRI
    CONCURRENT AND SEQUENTIAL RICE AND FISH BASED FARMING SYSTEMS
  • 13. Improved rice (aman)-shrimp system
    Wet season
    Dry season
    Gher preparation
    Bagda
    Rice
    Seedling
    Golda
    GIFT
    • Water depth- 60-80 cm
    • 14. Single stocking: @ 3-5/m²
    • 15. Yield: 350-550 kg/ha
    • 16. NR: 0.75-1.00 lakh/ha
    (1:1.9)
    HYVs: BR 23/40/41
    5,000-10,000/ha
    at 1:1 ratio
    Yield:
    • Rice: 4-5 t/ha.
    • 17. Fish: 200-250 kg/ha
    • 18. Prawn: 70-90 kg/ha
  • Results (economic return
    Stocking of prawn PL into shrimp ponds 60 days in advance of rice plantation resulted in 158% higher net return
    15,690
    Control
    About 369-584% higher return than in mono-cultivation of commonly practiced rice varieties
  • 19. Benefits of integrating fish with deep water rice
    Data from BFRI
  • 20. Benefits of integrating fish with rice
    67% fields with fish gave 13% higher rice yield
    82% fields with fish had less weed
    Evidence of reduced pests in rice
    Evidence of increased soil organic matter content
    Reduced need for fertilizer in rice
  • 21. Potential in Bangladesh
    Fish in rice-based ag system can enhance income at a higher rate than crops alone can
    thereby can reduce poverty, malnutrition and vulnerability
    • Generate employment opportunities
    Total rice area about 10.8 m ha
    About 7 m ha where water stays for 4-6 months
    • ~ 3 m ha boro fields
    • 22. ~ 1.40 m ha floating rice fields
    • 23. ~ 3 m ha t. amanfields (including coastal area
  • Constraints
    Technological
    • Limited technological options for various ecosystems, resource base and risks
    • 24. Pests & diseases
    • 25. Lack of technical knowledge
    Institutional and governance
    • No easy access to seed & other inputs
    • 26. Inadequate service centers
    • 27. Inadequate training facility
    • 28. Indiscriminate structures disregarding impact on fisheries
    • 29. Tenurial rights
  • Constraints
    Socioeconomic
    • Labor shortages
    • 30. Lack access to capital
    • 31. Risk of fish protection
    • 32. Lack of Access to Market
    Environmental
    Flooding, Drought, and impact of climate change
  • 33. Recommendations
    Look at system productivity and economic gains
    Strengthen understanding of the current conditions and long term projections
    Strengthen research and development – community participatory
    Develop Community-based entrepreneurships
    Build up on successes and local knowledge
    Lobby for Policy tools for governance – equity, access to factor and product markets, tenurial rights particularly for fishing in large water bodies
  • 34. THANKS