Question

Why do farmers use leguminous crops to provide nitrogen to soil?

Answer 1

Why do farmers use leguminous crops to provide nitrogen to the soil? ... Grass crops are unable to take their own nitrogen from the air so they either need the nitrogen in the soil that the legumes provide for them in a crop rotation or they need a chemical fertilizer containing nitrogen.

Answer 2

Answer:

Explanation:    It is because the leguminous plants contains  rhizobiums named bacteria present in the nodules . The rhizobiums converts the nitrogen in the form of nitrate which the plants take nitrogen easily..