Question

Explain how, soil gets affected by the repeated growing of crops in the same fields. How does use of fertilisers help the farmers ?

Answer 1

A) repeated growing of crops in the soil results in decrease in soil fertility as the soil use up the nutrients of the soil .
b) as the farmers need to replenish the fertility of the soil they use chemical substances known as fertilizer . They help in maintaining and increasing the fertility content of the soil but overuse of fertilisers can harm the soil . So the fertilisers should be used in correct quantity .