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7 NDVI和TNDVI估测建模的敏感性分析 A、B、C分别代表块茎形成期、块茎膨大期和淀粉积累期。

Fig. 7 Noise equivalent of pant nitrogen concentration estimation by NDVI and TNDVI A, B, and C represent potato tuber initiation stage, tuber bulking stage and starch accumulation stage, respectively.