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0896 Weeders for Use with SRI- Alternative Designs to Save Labor Time and Energy

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  • motorised weeder can also be included
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  • am from Tanzania am looking 8pc of cono weeder for SRI field.
    Please let me know the price.My contact is iddsu@rocketmail.com
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  • this is most useful
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  • Iam fro the country Philippines. I want to Impliment the SRI but I badly needed the Rotary weeder use in SRI where can I buy three units.? is there any market location in the Philippines for the Rotary weeder?
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0896 Weeders for Use with SRI- Alternative Designs to Save Labor Time and Energy

  1. 1. Weeders for Use with SRI Alternative Designs to Save Labor Time and Energy
  2. 2. For Easier Weeding…. <ul><li>SRI recommends planting seedlings in a square pattern, so a mechanical hand weeder (rotary hoe or cono-weeder or some adaptation) can be used in two perpendicular directions. This process aerates the soil while turning weeds back into the soil to decompose. </li></ul>
  3. 3. The “Rotating Hoe” In Sri Lanka, this tool is called the “Japanese weeder.” In China, it is called the “wolf-fang weeder.”
  4. 5. Simple Cono-Weeder This tool has hollow ‘cones’ with ‘ tooth-bars’ that churn the soil and weeds. It moves more easily over the surface of the soil.
  5. 6. Double Cono-Weeder An engineer in Madagascar took IRRI’s drawings and made an adjustable two-row weeder.
  6. 7. New Weeder Design in Sri Lanka <ul><li>H. M. Premaratna has developed a new weeder design that greatly reduces the time needed to do a soil-aerating, weed-removing operations. </li></ul>This is being manufactured locally in Sri Lanka for less than $10 each .
  7. 9. Advantages of this weeder <ul><li>Premaratna’s weeder can reduces weeding time from 5-10 days/acre to 1-2 days/acre, farmers say. </li></ul><ul><li>The ‘teeth’ of the new weeder, similar to the cono-weeder used in South India, do not get clogged with mud that needs to be removed, because the weeder is always pushed forward -- not pushed and pulled, forward and backward, as must be done with many other hand weeders for removing weeds and aerating the soil </li></ul>
  8. 10. Rotary weeder used in India
  9. 11. Weeder being demonstrated in Cuba
  10. 13. Weeder being used in SRI demonstrations in Senegal
  11. 14. Four-Row Weeder Gopal Swaminathan in Kadiramangalam, Tamil Nadu, India, has designed and built a four-row weeder. It does not require more upper-body strength than a woman can provide.
  12. 15. Motorized Weeder Ariyatne Subasinghe, from Hingurakgoda, Sri Lanka, has designed and built a motorized weeder that enables him to weed/aerate 2 ha in one day.
  13. 16. Tamil Nadu Agricultural University demonstration of SRI weeding
  14. 17. Using cono weeder in Tamil Nadu
  15. 19. Simplest Weeder Design – Association Tefy Saina, Madagascar No moving parts -- two-person operation -- considered to be very thorough and quick
  16. 20. Cambodian weeder design costing > $3 to build
  17. 21. Simplest weeder -- made by farmer in Morang District, Nepal; costs only 25 cents 1 laborer can weed 1 are in the time that 2-3 laborers require for manual weeding
  18. 22. Positive thinking about Weeding in the Philippines – ‘Aerobic Weeding’
  19. 23. What Next?

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