Phosphorus solubilizing biofertilizer is a microbial inoculant containing beneficial microorganisms capable of converting insoluble phosphorus in the soil into a plant-available form. These biofertilizers contain phosphate-solubilizing bacteria or fungi that produce organic acids, enzymes, and other compounds to solubilize phosphate minerals, such as rock phosphate or phosphate fertilizers. By enhancing phosphorus availability, these biofertilizers promote plant growth, root development, and overall crop productivity while reducing the need for chemical phosphorus fertilizers, thus contributing to sustainable agricultural practices.