Q3 of 16 Page 123

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

Effect of chemical fertilizers are as follows—

1. Reduce the crop productivity.


2. Decrease the nutrients from the soil.


3. Cause infertility of soil.


4. Pollute the environment and water bodies and also harm the aquatic life.


More from this chapter

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1

Suggest some ways in which our country could increase the production of rice to meat at least global limits. (AS1)

 2

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

 3

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

 4

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