Phosphate Solubilizing Bacteria (PSB) benefit soil health by decomposing organic residues through immobilization and mineralization, thereby maintaining equilibrium within soil solution phosphorus pools. Phosphorus, a major plant nutrient, is a crucial constituent of plant cells, essential for cell division and the development of the plant's growing tip, making it vital for seedlings and young plants; this contributes to enhanced crop growth and increased productivity. Furthermore, PSB fertilizers facilitate the transformation of insoluble phosphorus into available forms in the soil, increasing available phosphorus concentration and soil phosphorus availability to crops, ultimately promoting improved crop growth and yield.

Recommendation: - It is used before the flowering and fruiting stages to increase yield. The fixation of soil phosphorus increases with the duration of contact between soluble phosphorus and soil particles. Consequently, more efficient utilization of fertilizer phosphorus is generally achieved by applying the fertilizer shortly before planting the crop.