[目的]研究缓释肥料不同掺混比例和常用掺混比例减氮施肥对水稻产量和养分吸收的影响。[方法]以氮肥施用量或缓释氮肥与速效氮肥比例为处理梯度,设计田间小区试验,研究缓释肥料对水稻产量和养分吸收的影响。[结果]等氮量条件下,含有缓释氮素的掺混肥处理明显高于普通复合肥和尿素的常规处理,增产0.46~1.13 t/hm2,增产率达5.97%~13.87%,氮肥利用率提高5.85%~11.83%。[结论]当缓释氮与速效氮掺混比例为30∶70时,增产率、养分吸收量和氮肥利用率均表现最佳。采用30%缓释氮后减氮10%较常规处理仍有明显增产效果,但低于同掺混比例的全氮处理。 [Objective] The research aimed to study the effects of different dosages of slow-release fertilizers and nitrogen fertilization on the yield and nutrient uptake of rice. [Method] With the application rate of nitrogen fertilizer or the proportion of slow-release nitrogen and quick-acting nitrogen fertilizer as the treatment gradient, field experiments were designed to study the effects of slow-release fertilizer on the yield and nutrient absorption of rice. [Result] Under the condition of equal amount of nitrogen, the treatment of compound fertilizer with slow release nitrogen was obviously higher than that of common compound fertilizer and urea, the yield was increased from 0.46 to 1.13 t / hm2 and the yield was 5.97% ~ 13.87% Rate increased by 5.85% ~ 11.83%. [Conclusion] When the ratio of slow release nitrogen to available nitrogen was 30:70, yield, nutrient uptake and nitrogen use efficiency all performed best. Compared with the conventional treatment, the yield of 10% nitrogen reduced by 30% nitrogen was still significantly increased, but lower than that of the total nitrogen treated with the same proportion of nitrogen.