河南农业大学学报2009，Vol.43Issue(5)：480-484,5.
不同控释肥对夏玉米源库流特性的影响
Effects of controlled-release nitrogen fertilizer on characteristics of source, sink and flow of summer maize(Zea mays L. )
摘要
Abstract
The objective of this study is to investigate the effects of controlled-release nitrogen fertilizers on characteristics of source,sink and flow of summer maize. Three kinds of controlled-release nitrogen fertilizers and traditional fertilizer were designed to investigate the effects of canopy apparent photosynthesis rate, leaf area index, SPAD value, grain filling rate; yield and bleeding intensity of summer maize in a randomized design. Controlled-release nitrogen fertilizer evidently improved the characteristic of source indices, in comparison of traditional fertilizer, canopy apparent photosynthesis, leaf area index, SPAD values improved by 5.45%～37.02% , 4.61%～26.42% , 1.28%～7.51% , respectively. Controlled-release nitrogen fertilizer also evidently improved the characteristic of sink indices, kernel per ear, ear grain weight, 1 000-kernel weight, and the yield improved by 5.56%～20.24% , 5.00%～9.50% , 3.73%～14.67% ,3.38%～13.36% , respectively. During filling stage, the dry weight of grain, the average of filling rate improved by 7. 53%～45. 02% , 14. 18%～19. 32% , respectively. Bleeding intensity in spike-pedicel improved by 1.41%～116.67%. Under the conditions of this study, summer maize belonged to the source-sink interacted, among all treatments, all of the three kinds of controlled-release nitrogen fertilizer produce effects on regulating the characteristics of source, sink and flow, especially the T2 treatment.关键词
控释肥/夏玉米/源库流特性/产量Key words
controlled-release nitrogen fertilizer/ summer maize/ characteristics of source/ sink and flow/ yield分类
农业科技引用本文复制引用
马超,王同朝,杜园园,卫丽,马海平..不同控释肥对夏玉米源库流特性的影响[J].河南农业大学学报,2009,43(5):480-484,5.基金项目
国家"十一五"科技支撑计划项目(2006BAD02A07) （2006BAD02A07）
河南省高校科技创新人才支持计划(2009HASTIT006) （2009HASTIT006）
