A crop, such as winter wheat, winter rye, or clover, planted between periods of regular crop production to prevent soil erosion and provide humus or nitrogen.

Cultivation of a second type of crop primarily to improve the production system for a primary crop; examples include grasses or legumes maintained in orchards or vineyards and legume or other crops gr [..]

Plants, such as rye, alfalfa, or clover, that can be planted immediately after harvest to hold and protect the soil. coxa, coxopodite