Recent advances in phosphorus fixation mechanism in acid soil
酸性土壤固磷机理研究进展

With deepening studies on phosphorus-fixation mechanism in acid soils,some researchers have begun to focus on phosphorus-fixation by Mn. On the presentation of Mn-P fixation,this paper reviews the latest advances in recent 10 years and concentrates on the mechanism of phosphorus fixation in acid soils. In addition, it brakes through the classical inorganic P fractionation into Fe-P, Al-P, O-P and Ca-P in the traditional P classification and considers Mn-P as one of the main phosphorus fixation modes in latosols,cultivated from the parent basalt material. Furthermore,fixation of P by Fe, Al, Mn is compared, and differentiation from chemical availability and bioavailability of P discussed. Based on the above ,this paper presents some alienable measures for enhancing P utilization efficiency and postulates pivotal future research directions in the field of P fixation.