糜子叶片氮含量和籽粒蛋白质含量高光谱监测研究

王君杰,陈凌,王海岗,曹晓宁,刘思辰,田翔,秦慧彬,乔治军

Effects of Hyperspectral Prediction on Leaf Nitrogen Content and the Grain Protein Content of Broomcorn Millet

JunJie WANG,Ling CHEN,HaiGang WANG,XiaoNing CAO,SiChen LIU,Xiang TIAN,HuiBin QIN,ZhiJun QIAO

表3 糜子叶片氮含量（LNC）的高光谱模型的拟合（n=122）及验证（n=39）

Table 3 Fitting(n=122) and validation(n=39) models of hyperspectal in leaf nitrogen content

模型类型 Model type 建模集 Calibration set 验证集 Validation set 变量个数 Number of variable 决定系数 R2 均方根误差 RMSE 预测残差 RPD 决定系数 R2 均方根误差 RMSE 预测残差 RPD R-SMLR 0.754 0.85 0.85 0.790 0.44 1.63 3 1ST-SMLR 0.858 0.27 2.65 0.882 0.15 4.65 3 R-PLS 0.829 0.30 2.42 0.894 0.14 5.05 4 1ST-PLS 0.957 0.15 4.80 0.885 0.14 5.09 4 R-SVM 0.928 0.19 3.71 0.924 0.12 6.07 3 1ST-SVM 0.900 0.23 3.14 0.911 0.12 5.87 2