Agricultural Microbiology encompasses a broad range of study area.As microbes present in everywhere, microbiology embraces other disciplines also. Biofertilizers are gaining momentum recently due to the increasing emphasis on maintenance of soil health, minimize environmental pollution and cut down the use of chemicals in agriculture. It generate plant nutrients like nitrogen and phosphorous through their activity in the rhizosphere and make available to the plant. Rice is a stable food for half of the world. Water resource limitation threaten the sustainability of irrigated rice...