水稻穗部氮素含量高光谱估测研究

陈瑛瑛,王徐艺凌,朱宇涵,武威,刘涛,孙成明

Hyperspectral Estimation of Nitrogen Content in Rice Panicle

Yingying Chen,Yiling Wangxu,Yuhan Zhu,Wei Wu,Tao Liu,Chengming Sun

表2 稻穗全氮含量估算模型

Table 2 The estimation model of total nitrogen content of rice panicle

光谱指数 Spectral index 拟合方程 Fitted equation R2 SDr/SDb y=0.981+0.001x 0.311** DVI y=-1.597-34.688x2+20.486x 0.429** y=3.648e-3.282x 0.324** λb y=-75.627+0.148x 0.201* SDr y=2.156-3.023x 0.185* y=2.915e-2.945x 0.232* SDr/SDb, DVI y=2.075+0.001x1-2.952x2 0.505**