Q3 of 16 Page 123

Can high yielding varieties be grown without them as well? How? (AS1)

High yielding varieties give high reliance on fertilizers. So growing HYV (High yielding varieties) without chemical fertilizers will be challenging.


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2

How are biofertilizers more beneficial as compared to chemical fertilizers? (AS1)

 3

Find out the adverse effects of chemical fertilizers needed for growing the high yielding varieties of crops? (AS1)

 4

What threats to nature do chemical fertilizers, pesticides, insecticides and herbicides pose? (AS 6).

 5

What are the adverse effects of using high yielding varieties of seeds? (AS1)