Question

what are weeds? how can we control them​

Answer 1

Answer:

Explanation:

Weeds are unwanted plants. They grow with crops and compete for nutrients and water with main crop.

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Methods to control weeds are:

Tilling before sowing of crops.

It can be controlled using weedicides.

manual method of removing weeds is with the help of a khurpi .

Answer 2

Answer:

Weeds are the unwanted plants which develop in the cultivated field along with the main crop , are called weeds,

Examples :- Xanthium( gokhroo) , parthenium (hajar grass ) etc....

Methods to control weeds:-

1. Mechanical methods :- it include uprooting , hand hiring, ploughing ,burning rec...
2. Culture methods :- proper seed bed preparation, inter cropping , crop rotation can reduce the weed's growth.
3. Chemical methods :- chemicals like, weedicides and herbicides can check the growth of weeds.
4. Biological methods :- prickly pear weed (opuuntia)