安徽农业科学2012，Vol.40Issue(16)：8895-8896,8936,3.
施用缓释氮肥对夏玉米产量和氮肥利用率的影响
Effect of Controlled-release Nitrogen Fertilize(r) on Summer Corn Yield and Nitrogen Use Efficiency
摘要
Abstract
[ Objective ] To provide theoretical basis for the reasonable application of nitrogen fertilizer for summer com. [ Method ] A Held plot experiment was conducted to study the impact of slow-release nitrogen fertilizer on the yield and nitrogen use efficiency of summer com. [ Result ] The combined application of common nitrogen and slow-release nitrogen fertilizer as well as the reduction of slow-release nitrogen fertilizer application increased com yield and N use efficiency significantly at 0.05 level compared with common fertilizer. The maize yield, N uptake in grains, N uptake in straw, total N uptake and N use efficiency were the highest under the treatment of SCU70% + Pu'30%. The yield and N use efficiency of SCU70% + Pl30% were 7 284.0 kg/hm2 and 33.13% , which were 10.63% -33.02% and 7.81% -23.09% over the control respectively at 0.05 level. The yield and N use efficiency of SCU70% were 6 937.0 kg/hm! and 37.65% . which were 6. 54% - 18.85% and 11.55% - 18.00% over the control respectively at 0.05 level. [Conclusion] The combined application of common nitrogen and slow-release nitrogen fertilizer as well as the 30% reduction of slow-release nitrogen fertilizer application had higher yield of maize and N U8e efficiency than others at 0. 05 level.关键词
缓释氮肥/夏玉米/产量/氮肥利用率Key words
Controlled-release nitrogen fertilizer/ Summer com/ Yield/ N use efficiency分类
农业科技引用本文复制引用
李敏,叶舒娅,刘枫,袁嫚嫚,郭熙盛..施用缓释氮肥对夏玉米产量和氮肥利用率的影响[J].安徽农业科学,2012,40(16):8895-8896,8936,3.基金项目
施可丰长效穗定肥料产业技术联盟资助. （）
