Bifertilizer play a very significant role in improving soil fertility by fixing atmospheric nitrogen, by in association with plant roots and without it, solubilize insoluble soil phosphate and produces plant growth substance in the soil. They are in fact being promoted to harvest the naturally available biological system of nutrient mobilization Soil-plant-microbe interaction has got much importance in recent decades. Many types of microorganisms are known to inhabit soil, especially rhizosphere and play important role in plant growth and development. Indiscriminate use of synthetic...