种植密度和施氮量对小麦-玉米轮作体系下周年产量及氮肥利用率的影响

刘佳敏, 汪洋, 褚旭, 齐欣, 王慢慢, 赵亚南, 叶优良, 黄玉芳

Effects of Planting Density and Nitrogen Application Rate on Annual Yield and Nitrogen Use Efficiency of Wheat-Maize Rotation System

Liu Jiamin, Wang Yang, Chu Xu, Qi Xin, Wang Manman, Zhao Ya'nan, Ye Youliang, Huang Yufang

图1 种植密度对不同施氮量下不同品种小麦和玉米产量的影响 不同小写字母表示同一密度下不同施氮水平间差异达5%显著水平

Fig.1 Effects of planting density and nitrogen application rate on the yields of different varieties of wheat and maize Different lowercase letters indicate the difference between different nitrogen levels at the same density (P < 0.05)