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2 马铃薯块茎形成期、块茎膨大期、淀粉积累期NDVI与植株氮素浓度的估测模型

Fig. 2 Estimation model of NDVI and plant nitrogen concentration during potato tuber initiation stage, tuber bulking stage and starch accumulation stage