滴灌玉米临界氮稀释曲线与氮素营养诊断研究
付江鹏,贺正,贾彪,刘慧芳,李振洲,刘志

Critical nitrogen dilution curve and nitrogen nutrition diagnosis of maize with drip irrigation
Jiang-Peng FU,Zheng HE,Biao JIA,Hui-Fang LIU,Zhen-Zhou LI,Zhi LIU
图5 滴灌玉米氮营养指数动态变化
NNI: 氮营养指数。缩写同表2
Fig. 5 Dynamic changes of nitrogen nutrition index in drip irrigation maize
NNI: nitrogen nutrition index. Abbreviations are the same as those given in Table 2.