Crop Production and Management — Question 9

Weeds are undesirable plants that grow along with the main crop. Weeds can be controlled by following methods:

1. Tilling before sowing of crops helps in uprooting and killing of weeds
2. Weeds can be manually removed with the help of khurpi by uprooting or cutting them close to the ground.
3. Weeds should be removed before their flowering because they produce seeds in large number which are easily dispersed by wind.
4. Weeds are also controlled by using certain chemicals, called weedicides, like 2,4-D. These are sprayed in the fields to kill the weeds. They do not damage the crops.