不同时期灌溉对华北平原春玉米穗粒数的影响
高震, 梁效贵, 张莉, 赵雪, 杜雄, 崔彦宏, 周顺利

Effects of irrigating at different growth stages on kernel number of spring maize in the North China Plain
GAO Zhen, LIANG Xiao-Gui, ZHANG Li, ZHAO Xue, DU Xiong, CUI Yan-Hong, ZHOU Shun-Li
图7 1986-2016年试验点各个月份降水分布图
图中百分数字代表各个月份降水量变异系数。
Fig. 7 Rainfall distribution in each month at experimental site from 1986 to 2016
The data above boxes indicate the coefficient of variation in each month.