Phosphate is a essential nutrient to the plant. It is important to plant’s productivity and healthy growth. But Due to immobilization of phosphate by mineral ions such as Ferrus, Aluminium and Calcium and organic acids, the rate of available phosphate in soil is very low to plant needs. Chemical fertilizers are also immobilized in the soil, immediately so that only 20% of nutrient is absorbed by plants.So the Phosphate Solubility Bactria converting the insoluble phosphate compound in soil. Such organism not only assimilates phosphorus but also cause a large amount of soluble phosphate to be released in excess of their own requirements and saves the Phosphate nutrient . Phosphorus solubilizing activity is determined by the ability of microbes to release metabolites and maintain the soil pH. Phosphorus solubilizing ability of Phosphate Solubility Bactria has direct correlation with pH of the medium.