Synthetic fertilizers are harmful for soil and plant enviornment as well. An alternative for synthetic fertilizers are Phosphate Solubilising Microorganisms. Thus, soil pollution can be minimised by using Phosphate Solubilising Microorganisms along with little amount of synthetic fertilizers. Phosphate solubilisers are proven to be more beneficial when inoculated synergistically. This book, therefore, provides use of Phosphate solubilising microrganisms individually and synergistically. These organisms can be used on commercial scales and will certainly increase the economy of country too. The analysis should help shed light on decreasing environmental pollution and farmers opting for use biologically prepared and inexpensive fertilizers.