陕西省不同年代玉米品种产量和氮效率性状的变化
张仁和1, 杜伟莉1, 郭东伟1, 张爱瑛2, 胡富亮1, 李凤艳1,*, 薛吉全1,*

Changes of Grain Yield and Nitrogen Use Efficiency of Maize Hybrids Released in Different Eras in Shaanxi Province
ZHANG Ren-He1, DU Wei-Li1, GUO Dong-Wei1, ZHANG Ai-Ying2, HU Fu-Liang1, LI Feng-Yan1,*, XUE Ji-Quan1,*
图5 不同年代玉米品种2个氮肥水平下2011-2012年氮吸收效率NUpE、氮生理效率NUtE、花前氮积累量和花后氮积累量与氮肥农学利用率NUE间的相关性
Fig. 5 Relationship between nitrogen uptake efficient NUpE, nitrogen physiological efficiency NUtE, pre-anthesis nitrogen accumulation, post-anthesis nitrogen accumulation, and nitrogen use efficiency NUE for maize hybrids at two nitrogen levels in 2011 and 2012