几种缓释肥在盐碱地区夏玉米栽培中的应用研究

Application Research of Several Kinds of Slow-release Fertilizer on Summer Corn in Saline Area

[目的]为玉米生产提供技术指导。[方法]采用田间试验，研究4种玉米专用缓释肥对夏玉米的影响。[结果]4种缓释肥处理的增产效果都好于常规施肥，增产幅度为1．O％～24．8％。[结论]效果最好的是芭田复合长效I型缓释肥，比常规施肥增产24．8％。

[ Objective ] The research aimed to provide the technological guidance for the corn production. [ Method ] The effects of four kinds of slow-release fertilizer on summer corn was studied at coastal area in Hebei Province by field test. [ Result] The yields of four kinds of slow-release fertilizer were higher than that of conventional fertilization. The range of increasing in yield was 1.0% - 24, 8%. [ Conclusion ] The effect of Batian composite type I was the best and the rate of growth was 24.8% higher than conventional fertilization.