The prediction model of nitrogen nutrition in cotton canopy leaves based on hyperspectral visible-near infrared band feature fusion

文献类型： 外文期刊

第一作者： Li, Liang

作者： Li, Liang;Liu, Aiyu;Li, Liang;Wang, Xiaoyu;Li, Liang;Wang, Xiaoyu;Li, Fei;Li, Liang;Wang, Xiaoyu

作者机构：

关键词： chlorophyll; cotton; feature fusion; hyperspectral; multifractal detrended fluctuation analysis; nitrogen nutrient; SPAD

期刊名称：BIOTECHNOLOGY JOURNAL （ 影响因子：4.7； 五年影响因子：4.5 ）

ISSN： 1860-6768

年卷期： 2023 年

页码：

收录情况： SCI

摘要： Hyperspectral remote sensing technology is becoming increasingly popular in various fields due to its ability to provide detailed information about crop growth and nutritional status. The use of hyperspectral technology to predict SPAD (Soil and Plant Analyzer Development) values during cotton growth and adopt precise fertilization management measures is crucial for achieving high yield and fertilizer efficiency. To detect the nitrogen nutrition in cotton canopy leaves quickly, a non-destructive nitrogen nutrition retrieval model was proposed based on the spectral fusion features of the cotton canopy. The hyperspectral vegetation index and multifractal features were fused to predict the SPAD value and identify the amount of fertilizer applied at different levels. The random decision forest algorithm was used as the model predictor and classifier. A method was introduced which was widely used in the fields of finance and stocks (MF-DFA) into the field of agriculture to extract fractal features of cotton spectral reflectance. Comparing the fusion feature with multi-fractal feature and vegetation index, the results showed that the fusion feature parameters had higher accuracy and better stability than using a single feature or feature combination. The R-2 was as high as 0.8363, and the RMSE was 1.8767%. Our intelligent model provides a new idea for detecting nitrogen nutrition in cotton canopy leaves rapidly.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序