【摘要】 [目的]探讨化肥减施下不同缓释复合肥对冬作马铃薯产量及经济效益的影响。[方法]通过田间试验比较化肥减量施用下冬作马铃薯施用3种不同缓释复合肥之间的差异及缓释复合肥与常规复合肥之间的差异。[结果]3种缓释复合肥处理较无肥对照增产14 243.55～15 833.40 kg/hm~2,且可保障马铃薯块茎品质。缓释复合肥2和缓释复合肥3处理利润较常规施肥处理高3 612.3和2 394.9元/hm~2。缓释复合肥1、缓释复合肥2、缓释复合肥3处理肥料偏生产力显著高于常规施肥处理，分别较常规施肥处理高20.20、23.68、17.43 kg/kg。[结论]在试验条件下，1 hm~2施用1 500 kg缓释复合肥2或缓释复合肥3配合4 500 kg生物有机肥可实现减肥增效。更多还原

【Abstract】 [Objective]The effects of different fertilizers on yield and economic benefit of winter potato under chemical fertilizer reduction were discussed in this paper. [Method]Field experiments were conducted to compare the differences among three different slow release compound fertilizers and the differences between slow release compound fertilizer and conventional compound fertilizer of winter potato under chemical fertilizer reduction. [Result]The yield of three slow release compound fertilizer treatments increased by 14 243.55-15 833.40 kg/hm~2 compared with the non-fertilizer treatment. There was no significant difference in tuber quality among different treatments. The profit of slow release compound fertilizer 2 treatment and slow release compound fertilizer 3 treatment were 3 612.3 and 2 394.9 yuan/hm~2 higher than that of conventional fertilization treatment.The partial productivity of slow-release compound fertilizer 1, slow-release compound fertilizer 2 and slow-release compound fertilizer 3 was significantly higher than that of conventional fertilization treatment, which was 20.20,23.68 and 17.43 kg/kg higher than that of conventional fertilization treatment, respectively. [Conclusion]Under the experimental conditions, the application of 1 500 kg/hm~2 slow-release compound fertilizer 2 or slow-release compound fertilizer 3 combined with 4 500 kg/hm~2 biological organic fertilizer could reduce application rate of chemical fertilizer and improve fertilizer efficiency.更多还原