Question

what is weeding?how weeding should be done?

Answer 1

Weeding is the removal of unwanted and undesired plants that grow along with the main crop and harm them.
  weeding can be done by using
1) mechanical methods-
2)cultural methods-
3)chemical methods
4)biological methods

Answer 2

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Weeds are unwanted wild plants that grow in the field. Weeds compete with the crop for nutrients, light, and space. As a result, crop plants get lesser nutrients, light, and space for their development.