Azotobacter : A Plant Growth - Promoting Rhizobacteria Used as Biofertilizer

Nitrogen fixation is mainly responsible for improvement of crop yield. In this regard, diazotrophs like Rhizobium, Azotobacter and Azospirillum are important as they enrich nitrogen nutrition in N-deficient soils. Of these, Azotobacter promotes plant growth as well as nitrogen fixation. Thus technology has been developed for making use of Azotobacter biofertilizer for nitrogen and non-nitrogen fixing plants and popularized by educating about their benefits in agriculture to users for practicing integrated nitrogen management. _____________________________________________________________________________________________________________