为了研究不同施肥方式的减肥和增产效果，本文开展了单季稻施用缓控释肥与传统速效肥料的对比试验。结果表明，施肥处理的水稻成熟期较不施肥对照推迟3 d，不同施肥处理间成熟期没有差异；单季稻分蘖主要在栽后23~38 d 期间发生，施肥可促进分蘖发生，常规配方施肥与缓控释肥处理间分蘖发生量差异不大；与常规配方施肥相比，缓控释肥处理的平均氮肥偏生产力及氮肥贡献率分别提高26.1%和34.4%，施肥次数减少1次，减肥19.3%，产量提高1.7%。不同缓控释肥的施用效果以“好乐耕”和“稻坚强”效果较好，与常规配方施肥相比，经济效益分别增加236.10元/667 m2、138.80元/667 m2。

In order to explore the effects of different fertilization methods on fertilizer reduction and yield increasing, a comparative study on the application of slow-release fertilizer and conventional quick-effect fertilizer was carried out in this paper. The results showed that, the maturity stage of rice with fertilization was delayed by 3 days compared with the control without fertilization, and there was no difference among different fertilization treatments. Tillers mainly occurred in single cropping rice from 23 d to 38 d after transplanting, which could be promoted by fertilization. There was little difference in tiller number between conventional fertilization treatment and slow-released fertilization treatments. Compared with the conventional fertilization treatment, the average partial productivity of nitrogen fertilizer and nitrogen contribution rate of slow-released fertilizer treatments were increased by 26.1% and 34.4% respectively, nitrogen fertilizer was reduced by 19.3%, and the yield was increased by 1.7%. “Haolegeng” organic slow-released fertilizer and “Daojianqiang” slow-released fertilizer performed the higher rice yield and nitrogen use efficiency. Compared with the conventional fertilization treatment, the economic benefits of slow-released fertilizer treatments （treatment 2, 3 and 4） were increased by 236.10 yuan, 138.80 yuan and 89.20 yuan per 667 m2 respectively.