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What are weeds? how we can control them |
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Answer» What are weeds ? How can we control them ? Weeds are unwanted plants in the cultivated fields. They are plants other crops. Weeds TEND to compete with crops for food , water , nutrients , space and light . The process of removing weeds is called weeding ☆ Methods to control weeds :- A) Mechanical methods - Weeds may be pulled with our hand. Ploughing helps in removing as they uproot majority of them. The weeds are removed manually by using a trowel ( Khurpa ) B) Cultural Methods - They include - proper bed preparation , timely sowing of crops , intercropping , crop rotation . C) Chemical methods - Chemical WEED killers , called herbicides are sprayed on weeds to destroy them. Example of weedicides - ATRAZINE , fluchioralin , isoproturon. D) Biological Control - Biological Control of weeds involves the deliberate use of insects or some other organisms which consume and specifically destroy the weed plants. |
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