BI Bacillus

Phosphorus Solubilising Bacteria converting insoluble phosphatic compounds particularly the chemically fixed soil phosphorus into available form. Such organism not only assimilates phosphorus but also cause a large amount of soluble phosphate to be released in excess of their own requirements. Phosphorus solubilising activity is determined by the ability of microbes to release metabolites such as organic acid (lactic acid, malic acid, gluconic acid, fumaric acid, succinic and acetic acid). Inorganic phosphorus is solubilised by action of organic (gluconic, ketogluconic) and inorganic acids secreted by PSB and maintain the soil pH.