华北冬小麦开花期补灌的增产效应及其影响因素 |
张经廷,吕丽华,董志强,张丽华,姚艳荣,申海平,姚海坡,贾秀领 |
Yield-increasing effect of supplementary irrigation at winter wheat flowering and its influencing factors based on water and nitrogen coupling in north China |
Jing-Ting ZHANG,Li-Hua LYU,Zhi-Qiang DONG,Li-Hua ZHANG,Yan-Rong YAO,Hai-Ping SHEN,Hai-Po YAO,Xiu-Ling JIA |
图2 不同施氮水平下冬小麦开花期补灌增产率的年度变化 |
Fig. 2 Year-to-year variations of yield-increasing ratio of supplementary irrigation at flowering stage of winter wheat under different N application levels |
![]() |