Based on the equal amount of phosphorus and potassium , Ludan 818 was used to study the in-fluence of controlled-release fertilizer on maize yield , soil nutrient contents and fertilizer use efficiency in the application mode of full and 80%nitrogen.The results showed that the application of controlled -release fer-tilizer improved the dry matter accumulation , maize yield and fertilizer use efficiency .It could increase the yield by 17.61%~24.39%and 0.59%~6.38%respectively compared with the CK and conventional fertili-zation .The maize yield was the highest when the controlled -release fertilizer A was full used .But in compre-hensive consider, it was optimum to use the controlled -release fertilizer A at 80%amount (192 kg/hm2).%以鲁单818为供试品种，在磷钾量相等、氮量分别为全量和80％模式下，研究了控释肥对玉米产量、土壤养分含量以及肥料利用效率的影响。结果表明，控释肥处理有助于玉米物质积累，提高玉米的产量和肥料利用率，比CK增产17．61％～24．39％，比习惯施肥增产0．59％～6．38％；全量A控释肥的产量最高，但综合衡量，本试验条件下，以控释肥A 80％施氮量即192 kg/hm2水平最为合理。
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