基于无人机多光谱数据和氮素空间分异的玉米冠层氮浓度估算

郝琪, 陈天陆, 王富贵, 王振, 白岚方, 王永强, 王志刚

Estimation of canopy nitrogen concentration in maize based on UAV multi- spectral data and spatial nitrogen heterogeneity

HAO Qi, CHEN Tian-Lu, WANG Fu-Gui, WANG Zhen, BAI Lan-Fang, WANG Yong-Qiang, WANG Zhi-Gang

图4 不同施氮处理对玉米冠层氮浓度的影响 A: 2022年土默特右旗; B: 2022年土默特左旗; C: 2023年土默特右旗。缩略词同表2。处理同图1。

Fig. 4 Effects of different nitrogen application treatments on nitrogen concentration in maize canopy A: Tumd Right Banner in 2022; B: Tumd Left Banner in 2022; C: Tumd Right Banner in 2023. Abbreviations are the same as those given in Table 2. Treatments are the same as those given in Fig. 1.