Question

(a) find out the adverse effects of chemical fertilizers needed for growing the high yielding varieties of crops?

(b) can high yielding varieties be grown without them as well? How?

Answer 1

{a} 1. Acidification of soil happens due to excessive use of chemical fertilizers because of decrease in organic matter in the soil. nitrogen applied to fields in large amounts over time damages topsoil resulting in reduced crop yields.

{b} chemical fertilizers help in growing of high yielding varieties of crops. so we can save that chemical fertilizers are necessary for it. it is the second most requirement for yielding HV Y crops

Answer 2

Explanation:

they pollute lakes rivers and streams

they destroy beneficial soil life including earthworms

the damage soil fertility

food produced by using chemical fertilizers that does not taste good

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