Phosphorus is one of the main nutrient elements for plant growth and development. The major part of the phosphorus in the soil is inaccessible (insoluble) to the plant and the amount of available (soluble) phosphorus is negligible in agricultural soils. Nowadays, climate changes, inappropriate soil tillage operations, and continuous exposure to pesticides, herbicides, and chemical fertilizers all together result in soil structure destruction, soil organic matter, and nutrient losses. The soil microbial population has been severely influenced. Phospho Bacter Dayan® contains highly active microorganisms which could potentially solubilize the inaccessible phosphorous sources, and increase the bioavailability of phosphorous and other elements for plants. The microorganisms used in the product produce organic acids, phytohormones, and enzymes which these microbial metabolites increase the yield of plants, regulate soil pH, and enhance the bioavailability of other micro-elements. This product is exclusively formulated and contains highly active and multi-acting species of Pseudomonas sp. and Bacillus sp. With high phosphate solubilizing activity. This product is developed to partially provide the phosphorous requirement of plants through solubilizing insoluble phosphorus sources present in the soil.