Question

which crop is enriches nitrogen in soil

Answer 1

soyabean enriches nitrogen in soil

Answer 2

Leguminous plants such belonging the pea family are responsible for enriching the soil with nitrogen content.

This is because the leguminous plants have a symbiotic relationship with Rhizobium group of bacteria.

This group of bacteria forms nodules in the plant roots and enriches the soil with nitrogen which is produced during their metabolism