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Estimation of Nitrogen Content in Potato Plants Based on Spectral Spatial Characteristics

FAN Yi-guang^1,^3,⁵, FENG Hai-kuan^1,^2,^3,^*, LIU Yang^1,^3,⁴, BIAN Ming-bo^1,³, ZHAO Yu^1,³, YANG Gui-jun^1,³, QIAN Jian-guo⁵

基于岭回归的马铃薯PNC估算效果 (a): 现蕾期; (b): 块茎形成期; (c): 块茎增长期; (d): 淀粉积累期; (e): 成熟期