不同产量水平稻茬小麦氮素需求特征研究

杜宇笑, 李鑫格, 王雪, 刘小军, 田永超, 朱艳, 曹卫星, 曹强

Nitrogen demand characteristics with different grain yield levels for wheat after rice

Yu-Xiao DU, Xin-Ge LI, Xue WANG, Xiao-Jun LIU, Yong-Chao TIAN, Yan ZHU, Wei-Xing CAO, Qiang CAO

图5 不同产量水平小麦氮营养指数变化规律(A)及其与籽粒产量的相关关系(B) 图(A)中实线表示平均值, 虚线表示中值, 箱型边界表示75%和25%的四分位数, 上下边缘表示90和10百分位数, 圆点表示最大值和最小值, 不同小字母(a, b, c, d)表示产量水平间有显著差异(P < 0.05); 图(B)中实线表示拟合曲线, ***显著性为P < 0.001。

Fig. 5 Nitrogen nutrition index with different yield levels (A) and its correlation with wheat yield (B) The solid and dashed lines in Fig. A indicate mean and median, respectively. The box boundaries indicate the 75% and 25% quartiles, the whisker caps indicate 90th and 10th percentiles, and the dots indicate the maximum and minimum, and different small letters (a, b, c, d) represent that there was significant difference in different yield levels (P < 0.05); the solid line in Fig. B represents the relationship, *** indicates significantly difference at P < 0.001.