氮肥和密度对高粱产量及氮肥利用率的影响 |
张瑞栋,曹雄,岳忠孝,梁晓红,刘静,黄敏佳 |
Effects of Nitrogen and Density Interaction on Grain Yield and Nitrogen Use Efficiency of Sorghum |
Ruidong Zhang,Xiong Cao,Zhongxiao Yue,Xiaohong Liang,Jing Liu,Minjia Huang |
图1 不同密度条件下氮肥增产率比较. 图中不同小写字母表示在5%水平上差异显著,下同 |
Fig.1 Comparison of yield increasing efficiency by nitrogen fertilizer under different density levels Different lowercase letters in the figure represent significant difference at the 5% level, the same below |