Nitrogen fixation The Plumeria > Nitrogen fixation Posted on September 13, 2016November 10, 2022 by PlumeriaDB The conversion of atmospheric nitrogen into plant-available forms by rhizobia bacteria living on the roots of legumes. Related Articles: Why Use VitazymeWhy and How to Use VitazymeGlossary: MicronutrientsGlossary: Rhizobia bacteriaPeriodic Table of Crop Nutrients and Deficiencies