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2 不同密度条件下氮肥偏生产力的比较 |
Fig.2 Comparison of nitrogen partial factor productivity under different density levels |