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1407 - Experience in building inter-row weeders for small-scale farmers

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1407 - Experience in building inter-row weeders for small-scale farmers

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Presentation at the Workshop on Crop Production Equipment for the System of Rice Intensification (SRI)
Presenter: Salehuddin Yahya, Malaysia
Title: Experience in building inter-row weeders for small-scale farmers
Date: November 1, 2014
Venue: ACISAI, Asian Institute of Technology, Thailand

Presentation at the Workshop on Crop Production Equipment for the System of Rice Intensification (SRI)
Presenter: Salehuddin Yahya, Malaysia
Title: Experience in building inter-row weeders for small-scale farmers
Date: November 1, 2014
Venue: ACISAI, Asian Institute of Technology, Thailand

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1407 - Experience in building inter-row weeders for small-scale farmers

  1. 1. Experience in Building Inter-row Weeders for Small-scale Farmers Malaysia
  2. 2. Manual Weeders
  3. 3. xxxxxxxx
  4. 4. xxxxxxxx
  5. 5. xxxxxxxx
  6. 6. xxxxxxxx
  7. 7. Mechanical Weeders • The need to to cater to 3 groups of small-scale farm sizes: I. 1.5 ha or less II. 1.5 to 6 ha III. 6 to 15 ha
  8. 8. Grass Cutters for Power Source
  9. 9. Modified Grass Cutters
  10. 10. Talib Mark I
  11. 11. Motorised Weeder
  12. 12. Talib Mark II
  13. 13. Conclusion 1 • The gearing factor (high rev meant for grass cutting) not suitable for inter-row weeding job. •Operator has little control. •Not sufficient power for two-row task.
  14. 14. Inspired by Japanese Videos 7-row Portable Weeder
  15. 15. xxxxxxxx
  16. 16. Four-Row Weeder
  17. 17. Coclusion 2 •Unsuitable gearing factor •High rev to generate sufficient power •Operator does not have total control at high rev
  18. 18. xxxxxxxx This design did not even float
  19. 19. Conclusion 3 • Team gave up the idea of designing mechanised weeders that farmers could improve on • Use custom-made weeders
  20. 20. Custom-made inter-row weeder
  21. 21. Indonesian Power Weeders
  22. 22. Conclusion 4 •Good, workable, affordable •Uo to five rows (Indonesian manufacturer) •Up to 25-day old plants
  23. 23. Attempts at Group II Farm-size • More drive train power – 2.5 to 3 h.p. • Light • To enable working up to 40-day old crop • To have at least 3-speed control • Independent wheel-breaking to make turning easy
  24. 24. First prototype for higher clearance
  25. 25. Modified Garden Tillers 5.5 hp
  26. 26. Field Tests by State DOA, Kedah
  27. 27. xxxxxxxx
  28. 28. Field Tests by State DOA, Perak
  29. 29. First Prize - Farm Innovation 2012 DOA, Malaysia
  30. 30. First Prize – Farm Group Leader 2013
  31. 31. Conclusion 5 • Power train over actual need • Better wheel design sufficient to perform weeding task • Up to 40% of plants damaged at turning point, reduced if turning made outside farm plot • A seating arrangement and power linkage to weeding wheel may cover Group III farm-size
  32. 32. Group III farm size (and beyond)
  33. 33. Inspired by Japanese Video 11-Row Rotary Weeder Behind Transplanting Tractor
  34. 34. Row-Weeder Attached to Mini-Tractors
  35. 35. Clay Soil Needs More Standing Water
  36. 36. xxxxxxxx
  37. 37. xxxxxxxx
  38. 38. CONCLUSION • Agricultural workers at large need to be convinced of positive effect of weeding beyond just controlling weeds. Working the rows is agronomicaly good for crop.
  39. 39. Thank you

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