Question

Defion crop rotation what is the role of leguminous plant

Answer 1

Crop Rotation: the growing of different crops in succession on a piece of land to avoid exhausting the soil and to control weeds, pests, and diseases.
Leguminous crops are important because they increase the fertility of soil by addition of nitrogen. In fact a nitrogen fixing bacterium named Rhizobium forms symbiotic association with the roots of leguminous crops and fixes nitrogen. The nitrogen fixed by the bacterium is also released in the soil thus contributing to soil fertility. Leguminous crops are frequently used in crop rotation practises to restore the soil fertility.

Answer 2

The growing of different crops in succession on a piece of land to avoid exhausting the soil and to control weeds, pests, and diseases,is called Crop Rotation. OR. The practice of growing different crops in succession on the same land chiefly to preserve the productive capacity of the soil is called Crop Rotation.
Legumes have bacteria on nodules which are on the roots of the plant. The bacteria on the nodules takes nitrogen from the air and fixes it into the soil, so that other plants that require nitrogen can use it as well.