品种和生育时期对冠层光谱指数(NDVI)估测马铃薯植株氮素浓度的影响

杨海波,张加康,杨柳,贾禹泽,刘楠,李斐

Effect of variety and growth period on NDVI estimation of nitrogen concentration in potato plants

Hai-Bo YANG,Jia-Kang ZHANG,Liu YANG,Yu-Ze JIA, ,Fei LI

图1 试验地位置及试验小区分布 T1~T7分别代表由低到高的氮肥用量处理; a、b、c、d为4次重复。

Fig. 1 Location of test site and distribution of test plot T1-T7 represents the treatment of nitrogen fertilizer from low to high; a, b, c, and d are four replicated.