Q21 of 465 Page 45

In organic farming diseases are controlled by.... and... methods.

Cultural and Biological

Organic farming is an environmental friendly method of crop production. It does not use chemicals and rely on cultural and biological methods for crop production.


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19

Food grown on organic farming principles is called .....

 20

......is known to have highest pesticide load on their crop.

 22

India has .... Major river basins and ... composite river basins that form the surface water resource.

 23

The process of supplying .... to crops in the fields by means of canals, reservoirs, wells, river valley systems and river lift systems is known as irrigation.