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腐植酸由芳香族及多种官能团构成,具有弱酸性、吸水性、胶体性、吸附性、离子交换性、络合性、氧化还原性等物理化学和生物活性,在增效化肥方面效果显著,但相关的机理研究较分散。为此,综述了腐植酸对氮、磷肥增效机制,以期为推动腐植酸与氮磷复混肥产品研发、提高农业生产用肥效率提供参考。
Humic acid is composed of aromatics and various functional groups. Physicochemical and biological activities such as weak acidity, water absorption, colloidality, adsorption, ion exchangeability, complexation and redox activity are significantly affected by humic acid, However, the related mechanism research is more scattered. Therefore, the synergistic mechanism of humic acid on nitrogen and phosphate fertilizers is reviewed in order to provide reference for promoting the research and development of humic acid, nitrogen and phosphorus compound fertilizers and improving the efficiency of fertilizer for agricultural production.