基于高光谱数据的滴灌甜菜叶片全氮含量估算

李宗飞,苏继霞,费聪,李阳阳,刘宁宁,戴宇祥,张开祥,王开勇,樊华,陈兵

Estimation of total nitrogen content in sugarbeet leaves under drip irrigation based on hyperspectral characteristic parameters and vegetation index

Zong-Fei LI,Ji-Xia SU,Cong FEI,Yang-Yang LI,Ning-Ning LIU,Yu-Xiang DAI,Kai-Xiang ZHANG,Kai-Yong WANG,Hua FAN,Bing CHEN

图2 甜菜冠层原始光谱反射率与全氮含量相关性 F0.05: 显著相关(P < 0.05); F0.01: 极显著相关(P < 0.01)。

Fig. 2 Correlation between original spectral reflectance and total nitrogen content in sugar beet canopy F0.05: significant correlation (P < 0.05); F0.01: extremely significant correlation (P < 0.01).