define crop rotation . How is it done to increase the yield of crops?Why is this process called environment friendly?

The practice of growing two or more crops different crops on a same piece of land in a pre planned succession is called Crop-Rotation.

It helps in increasing yield as when different crops are grown on the fields one after another, the yields of produce obtained are greater then when the same crops are grown year after year...

It is called environment friendly as with help of crop rotation, the life cycles of weed,insects and pathogens can be broken naturally. So, there will be reduction in need of fertilizers and there will not be use of harmful chemicals which will not harm the environment.. That's why it is said environment friendly....

hope this will help u...:)
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