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3 马铃薯组合生育时期NDVI与植株氮素浓度的估测模型 A, B和C分别代表马铃薯块茎形成期、块茎膨大期和淀粉积累期。 |
Fig. 3 Estimation model of NDVI and plant nitrogen concentration during combined growth stages of potato A, B, and C represent potato tuber initiation stage, tuber bulking stage and starch accumulation stage respectively. |
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