Question

How do leguminous plants increase soil fertility? in short

Answer 1

these leguminous plants have nodes which are rich in nitrogen and it increses the nitrogen content of soil.

Answer 2

Leguminous plants live symbiotically with a bacterium called Rhizobium. This bacterium converts atmospheric nitrogen into nitrates which are soluble by the plants. This bacterium lives in the roots of leguminous plants. In this way, leguminous plants increase soil fertility.

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