What is Azotobacter?

Azotobacter is bacteria specially used as biofertilizer in soil. Azotobacter bring atmospheric nitrogen to soil when applied to the soil. These bacteria utilize atmospheric nitrogen gas for their cell protein synthesis. This cell protein is then mineralized in soil after the death of Azotobacter cells thereby contributing towards the nitrogen availability of the crop plants. Azotobacter spp. is sensitive to acidic pH, high salts, and temperature.