Inter-cropping and crop rotation both are used to get maximum benefit on limited land.
Inter-cropping ensures maximum utilisation of the nutrients supplied. It helps in preventing pests and diseases to spread throughout the field. It also increases soil fertility.
Crop rotation prevents soil depletion, increases soil fertility, and reduces soil erosion.
Both these methods reduce the need for fertilizers. It also helps in controlling weeds and controls the growth of pathogens and pests in crops.