Leguminous plants are those that fix atmospheric nitrogen into the soil.
A leguminous plant is a type of flowering plant that produces vegetables or meals from ground knobs that improve the ability of nitrogen-rich material.
The presence of Rhizobium bacteria in the root knobs of leguminous plants improves soil ripeness.
These tiny microorganisms convert air nitrogen into a form that plants can use.
This decreases nitrogen shortage and increases nitrogen abundance in the soil.
Leguminous plants include peas, soya beans, clover, lupine, alfalfa, etc.