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Determination of Soil Quality from Chinese Apple Plant Area by NIR Spectroscopy

文献类型： 外文期刊

作者： Dong Yi-wei 1 ; Huang Jin-li 1 ; Sun Bao-li 1 ; Bai Wei 1 ; Fan Zhong-nan 1 ; Wang Ya-nan 1 ; Liu Ya-wei 1 ; Tong Cheng-f 1 ;

作者机构： 1.Chinese Acad Agr Sci, Inst Environm & Sustainable Dev Agr, Key Lab Agroenvironm Climate Change, Minist Agr, Beijing 100081, Peoples R China

2.Chinese Acad Agr Sci, Inst Environm &

关键词： Near infrared;Soil;Organic substance;pH value;DOSC

期刊名称：SPECTROSCOPY AND SPECTRAL ANALYSIS （ 影响因子：0.589； 五年影响因子：0.504 ）

ISSN： 1000-0593

年卷期： 2009 年 29 卷 8 期

页码：

收录情况： SCI

摘要： In the present work, 111 soil samples from 11 different Chinese apple plant areas were used to take the diffuse reflection spectra from 12 500 to 4 000 cm(-1) by FT-NIR. The models of organic substance and pH value of soil samples were built by using partial least square regression (PLSR). The calibration model gave the correlation coefficients of 0.818 and 0.836 for the two values respectively, with the root mean square error of prediction (RMSEP) of 0.377 (%) and 0.251, respectively. In order to improve the robustness and performance of calibration, several spectra preprocessing methods were employed, including standard normalized variate (SNV), multiplicative scatter correction (MSC) and direct orthogonal signal correction (DOSC). Finally, the performance of DOSC was found to be the best for organic substance and pH value with RMSEP of 0.258(%) and 0.248, respectively. The results showed that the technology of NIR spectroscopy was useful to nondestructive determination of the organic substance and pH value of soil. These research findings provide theoretic base for fertilization and pomiculture by means of NIR diffuse reflection.

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