Variation of soil organic phosphorus fractions, and relationship of organic P and its fractions, with soil organic matter and readily available P were studied with Bowman-Cole method.

• 采用Bowman和Cole提出的有机P分组方法,对长期施肥条件下土壤有机P的组成变化以及有机P及其组分与有机质、速效P的关系进行研究。