what are advantaes and disadvantages of mixed cropping?

Advantages of Mixed cropping-

Mixed cropping is growing two or more crops simultaneously on the same piece of land.This reduces risk and gives some insurance against failure of one of the crops. Mixed cropping do not allow the growth of weeds. There is no need to pay extra attention to any of the crop as  all the crops are of same duration and similar nutrient requirement, so each crops receive equal care.

 Disadvantages:-

If the crops are not chosen properly ,there are chances of competition between the crops for nutrients & seondly, it reduces the fertility of soil as many crops are grown in the field at a time.