How Do Plants Fix Nitrogen? Nitrogen fixing plants don’t pull nitrogen from the air on their own. … The bacteria infects legume plants such as peas and beans and uses the plant to help it draw nitrogen from the air. The bacteria converts this nitrogen gas and stores it in the roots of the plant.

How do plants make nitrogen?

Plants get the nitrogen that they need from the soil, where it has already been fixed by bacteria and archaea. Bacteria and archaea in the soil and in the roots of some plants have the ability to convert molecular nitrogen from the air (N2) to ammonia (NH3), thereby breaking the tough triple bond of molecular nitrogen.

How do trees fix nitrogen?

Biological Nitrogen Fixation is a natural process where certain bacteria and trees with nodules in their root systems are able to convert the gas into a form that is usable for other plant life. … Nitrates, nitrogen dioxide and ammonia become transformed into accessible components.