The results from many researches showed that phosphate-solubilizing bacteria are common in soil, and their amount and species number in rhizosphere are greater than in bulk soil.

• 众多研究表明，土壤中普遍存在能够分解矿质态磷和有机态磷的微生物，而且植物根际土壤的解磷细菌不仅数量多于土体，其种类也明显多于土体土壤。