Question

Among the given options, which one is not correct for the use of a large amount of fertilizers and pesticides?
A. They are eco friendly.
B. They turn the fields barren after some time.
C. They adversely affect the useful component from the soil.
D. They destroy the soil fertility.

Answer 1

The fertilizers can be defined as the substances that are added to the soil in the form of nutrients for the healthy growth of plants. Soil has essential nutrients which it supplies to the plant for its growth and development.

Complete answer: Sometimes farmers grow crops on the land continuously one after the other which makes the soil poor in nutrients. Thus it becomes essential for the farmers to add manure in the field for replenishing the lost nutrients and this process is called manuring. The loss of manures and nutrients in the plants lead to mineral deficiency in the crops and weak crops.
Manure is the organic substance rich in nutrients which is formed by the decomposition of animals and plant waste or their dead remains. Farmers make manure by dumping these organic wastes in a pit and let it decompose by microorganisms for some time. The matter obtained after the decomposition is used as manure.
Fertilizers are the chemicals that are used in the place of manures as they are rich in ammonium sulphate, urea, potash, nitrogen phosphorus, potassium, etc. These fertilizers are now used by farmers as they help in increasing the yield of the plants.
Pesticides are also chemical compounds used by the farmers to control insects and pests in the crop fields as they decrease the crop yield by harming the crops.
Both fertilizers and pesticides are harmful for the environment. They decrease the fertility of the soil in the long run and also cause water pollution. They make the soil acidic and make land barren and dry. These chemicals also kill the useful organisms.
So, the correct answer is “Option A”.

Note: The use of fertilizers can be minimized by practicing agricultural practices like crop rotation and use of organic fertilizers and manures to increase the yield. They should be avoided in order to prevent more pollution of air, water and soil.