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规模化农业生产对能够适用于水肥一体化技术的水溶性肥料的需求越来越大。在综述土壤磷素转化与循环特征的基础上,总结了新型水溶性肥料生产中应用的聚磷酸盐和亚磷酸盐的特点、功能以及其用于液体水溶性复混肥的适宜性,指出在开发功能性液体水溶性肥料方面,合理选择磷素原料产品对于提高磷素养分有效性,实现产品螯合、缓释或杀菌等功能具有重要作用。
The demand of large-scale agricultural production for water-soluble fertilizers that can be applied to water-fertilizer integrated technologies is growing. Based on the review of the characteristics of soil phosphorus conversion and circulation, the characteristics and functions of polyphosphates and phosphites used in the production of new water-soluble fertilizers and their suitability for liquid water-soluble compound fertilizers were summarized. In the development of functional liquid water-soluble fertilizers, the rational selection of raw materials for phosphorus products plays an important role in improving the nutrient availability of phosphorus and realizing the functions of chelation, sustained release or sterilization of the products.