免耕轮作对减氮小麦产量下降的补偿效果

武斌, 曹永刚, 胡发龙, 殷文, 樊志龙, 范虹, 柴强

Compensation effect of no-tillage rotation on yield reduction of nitrogen- reduced wheat

WU Bin, CAO Yong-Gang, HU Fa-Long, YIN Wen, FAN Zhi-Long, FAN Hong, CHAI Qiang

图2 免耕轮作与减氮对小麦群体生长率的影响 处理同图1。C为种植方式; N为施氮水平。不同字母表示P < 0.05水平差异显著, 误差线表示标准差(n = 3)。***表示P < 0.001, *表示P < 0.05, ns表示无显著差异。

Fig. 2 Population growth rate of wheat under no-tillage rotational and nitrogen reduction Treatments are the same as those given in Fig. 1. C represents cropping pattern; N represents nitrogen level. Different lowercase letters indicate significant differences at the P < 0.05 level, error bars indicate standard error (n = 3). *** indicates P < 0.001, * indicates P < 0.05, ns indicates not significant.