What are the advantages of intercropping and crop rotation?

Intercropping is a cropping practice that involves growing two or more crops in proximity. This gives higher income than the sole cropping. Intercropping maintains the soil fertility. It reduces the soil runoff. Crop rotation is the process of growing different crops in succession on a piece of land to avoid a decrease in the fertility of the soil. Crop rotation gives various nutrients to the soil. Rotation of crops helps in controlling the growth of weeds and pests.