优化氮素与品种匹配可协同提高盐碱地夏玉米产量和氮肥利用率

高英波,张慧,刘开昌,张华斌,李源方,付希强,薛艳芳,钱欣,代红翠,李宗新

The Coordination of Nitrogen Optimization with Matched Variety Could Enhance Maize Grain Yield and Nitrogen Use Efficiency of Summer Maize in Saline Land

GAO YingBo,ZHANG Hui,LIU KaiChang,ZHANG HuaBin,LI YuanFang,FU XiQiang,XUE YanFang,QIAN Xin,DAI HongCui,LI ZongXin

表1 品种、氮肥水平以及二者交互作用对夏玉米产量、产量构成、氮素积累转运及利用效率的影响

Table 1 Effects of variety, nitrogen and their interaction in the global analyses of variance of grain yield, yield components, nitrogen use efficiency and nitrogen transition efficiency

变异来源 Source of variation GY EN KN TGW NPFP NAE NUE SNDR NAAG NTA AANAA NTE NCP 年份 Year (Y) *** ** *** *** *** *** *** *** *** *** *** ns *** 品种 Variety (V) *** *** *** *** *** ns *** *** *** *** *** *** ** 氮肥水平 Nitrogen (N) *** *** *** *** *** *** *** *** *** *** *** ns *** Y×V ** *** *** *** ** ns *** *** *** *** *** *** *** Y×N ** * ns ns *** ns *** *** *** *** *** *** *** V×N ns ns *** * ** ns *** ** ** ** *** ns *** Y×V×N ns ns ** ns ns ns ** * ** *** *** *** ***