通过田间试验研究了包膜肥料ZP氮素释放特点和在夏玉米上施用效果。结果表明:包膜肥料ZP氮素在土壤中的释放有效期可达80天左右,其释放动态大体可分为三个阶段,其中快速释放期在施入后24~42天。等氮量的不同施氮处理中,包膜肥料所占比例越高的处理玉米全生育期吸收氮素越多,产量越高,氮素的利用率也越高。全部施用包膜肥料的处理较全部供给尿素的处理氮肥利用率高出14.4%。 Field experiments were conducted to study the characteristics of ZP release from coated fertilizers and application effects on summer maize. The results showed that the releasing period of ZP nitrogen in the coated fertilizers was about 80 days in soil, and the release kinetics could be divided into three stages. The rapid release period was 24-42 days after application. Nitrogen content of different N treatment, the higher the proportion of coated fertilizer treatment of corn during the growth period to absorb more nitrogen, the higher the yield, nitrogen utilization is higher. The treatment of all the coated fertilizers was more than 14.4% of the total nitrogen supplied.