Question

Why farmers do not add fertilisers to leguminous plants?​

Answer 1

Explanation:

because the N2 fixing bacteria reside in the root nodules of the leguminous plant.

hence the soil in which legumes are grown, because rich in nitrogen and does not require nitrogenous fertilizers.

Answer 2

Answer:

farmers do not add chemical/artificial fertilizers to leguminous plants because the nitrogen fixing bacteria, rizobium is already present in the root nodules of leguminous plants.

Explanation:

rizobium bacteria is capable of fixing atmospheric nitrogen into soil in the form of nitrates which is helpful for the plant and thus there is no need for the farmer to add chemical/artificial fertilizers.