不同农田管理措施对土壤有机磷影响的研究进展

Research advance of soil organic phosphorus under different fertility management

综述了土壤有机磷种类、来源、含量、分布及影响因素。重点介绍了不同耕作方式、秸秆还田、施用无机磷肥及有机肥对土壤有机磷变化的影响。开垦、轮作有利于土壤有机磷下降;秸秆还田、施用有机肥提高土壤有机磷含量,但由于有机物性质不同,有机磷组分转化不同。施用无机磷肥后,有部分无机态磷转化为有机态。外源有机酸、磷酸酶有利于有效性低的有机磷组分向有效性高的组分转化。

Summary of the soil organic phosphorus sources, components, content, distribution and influencing factors. Focuses on the different farming measures, straw retention, application of phosphorus fertilizer and organic manure on soil organic phosphorus change. Cultivation and crop rotation was make for soil organic phosphorus decreased; straw retention and organic fertilizer applications could improve soil organic phosphorus contents, but because of the nature of different organic compounds, organic phosphorus transformation were different. After using phosphate fertilizer, part of inorganic phosphorus transform into organic state. Exogenous organic acids and phosphates are conducive to the low effectiveness organic phosphorus component to the high effectiveness conversion.