Prior to sowing rice, a legume crop was cultivated and ploughed back in field, Why? Explain.

Prior to sowing rice, why was a legume crop cultivated and ploughed back into the field?

If more than one crop is cultivated in the same field then it called

Why are leguminous plants cultivated as green manure crops?

What would happen if same crop is cultivated continuously in the same field?

The crop cultivated by sowing seeds directly into the soil is

Assertion. Farmers grow a leguminous crop and plough it back in the field Reason. Leguminous plant fix atmospheric nitrogen through a symbiotic nitrogen fixing bactria-Rhizobium.

Why farmers cultivate wheat crop in Rabi season?

Give reasons,why? Farmers grow crop of Trifolium (Family Leguminosae) and plough it back in the field to reemove the nitrogen deficiency uin soil.

Explain why a legume crop does not require nitrogenous fertilizers ?