Other free living organisms such as bacteria of the genera Pseudomonas and Bacillus and fungi belonging to the genera Penicillium and Aspergillus can solubilize P in soil through.

• 其它的一些自生型的微生物如假单胞菌和芽孢杆菌及青霉菌属、曲霉菌属的真菌都能溶解土壤中的磷。