水溶性聚磷酸铵（APP）是一种含氮、磷的新型肥料，具有溶解性好、兼容性强、结晶温度低、螯合性能好等优点，施用于土壤中能有效提高土壤中有效磷的含量，减少土壤对磷的固定，提高磷的利用率。综述了水溶性聚磷酸铵在土壤中的转化研究进展，为聚磷酸铵在农业上的推广使用提供参考。
关键词: 水溶性聚磷酸铵 / 聚磷酸铵水解 / 聚磷酸铵扩散 / 土壤有效磷
Abstract:
water soluble ammonium polyphosphate（APP）is a newtype of fertilizer containing nitrogen and phosphorus , which features good sol- ubility , strong compatibility , low crystallization temperature , good chelation performance and soon. when applied to soil , it can effectively im- prove the content of available phosphorus in soil , reduce the soil fixation of phosphorus and improve the utilization rate of phosphorus. The re- search progress on the conversion of water-soluble ammonium polyphosphate in soil is reviewed to provide reference for the popularization and application of ammonium polyphosphate in agriculture.
Keywords: water-soluble ammonium polyphosphate / hydrolysis of polyammonium phosphate / diffusion of ammonium polyphosphate / available phosphorus in soil