Diversity of Root Nodule Bacteria: Strengthening R&D and Inoculant Supply

There is a renewed global interest in biological nitrogen fixation (BNF) for the last several decades, particularly in assessing the diversity of root nodule bacterial populations in diverse geographies. This article focuses on the current status and argues for the establishment of centres of excellence on Nitrogen Fixation, Microbial Inoculants and Soil Ecology to provide sharper focus and impetus for the research and development effort needed for rhizobial strain improvement and for streamlining inoculants supply to help achieve improved soil health and N sustainability.