What are weeds? How are weeds harmful? describe the measures of control.
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Answered by
40
Weeds are the unwanted plants that compete with the crop plants for nutrition and various other factors. Thus, they damage crops by affecting their growth.
Weeds compete with the main crop plant for air, water ,sunlight and nutrients in the soil making them deficient for the main crop. Also, they are not of use to humans. Thus they affect the growth of the plant and their removal is necessary.
Many farmers choose to use chemicals to keep weeds and pests from destroying their crops and to add more nutrients to the soil. There are three different kinds of pesticides; herbicides, insecticides and fungicides. All three of these pesticides are used to kill different kinds of pests that can be found on a farm.
Weeds compete with the main crop plant for air, water ,sunlight and nutrients in the soil making them deficient for the main crop. Also, they are not of use to humans. Thus they affect the growth of the plant and their removal is necessary.
Many farmers choose to use chemicals to keep weeds and pests from destroying their crops and to add more nutrients to the soil. There are three different kinds of pesticides; herbicides, insecticides and fungicides. All three of these pesticides are used to kill different kinds of pests that can be found on a farm.
Answered by
32
The unwanted plants, that grow along with the main crop are known as weeds.
They are harmful as:-
1.they compete with the main crop for :-
a. water
b. space
c. sunlight
They can be removed by Manual removal, Tilling before sowing, by using weedicides.
Hope it helps you
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They are harmful as:-
1.they compete with the main crop for :-
a. water
b. space
c. sunlight
They can be removed by Manual removal, Tilling before sowing, by using weedicides.
Hope it helps you
plz mark me as the brainlest
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