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CBSE Class 9 Answered

Explain any 3 methods of weed control.

Asked by Gurbrindersohal89013 | 13 Mar, 2019, 12:10: PM
Expert Answer

Methods of weed control:

  • Mechanical method- Involves pulling out weeds with hands or by ploughing. Weeds can also be removed using a big comb-like harrow or using a trowel.
  • Cultural method: Cultural methods of weed control include proper bed preparation, timely sowing of crops, intercropping and crop rotation.
  • Chemical method: involve the use of chemical weed killers called herbicides such as 2,4-D, atrazine, fluchloralin, and isoproturon to kill the weeds.
  • Biological method: involves the deliberate use of insects or some other organisms which consume and specifically destroy weed plants.
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