Share Email Print
cover

Proceedings Paper • new

Comparison of chemometrics method on K detection in soil using laser induced breakdown spectroscopy
Author(s): Chengxu Lü; Xunpeng Jiang; Yanwei Yuan; Kang Niu; Yannan Qi; Junning Zhang
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Potassium detection in the soil is of significant importance for agricultural industry. In this paper, chemometrics methods of artificial neural networks (ANN) and partial least squares (PLS) were comparatively used to detect K in the soil with laser induced breakdown spectroscopy (LIBS). In total, 12 certified reference soils and 17 simulated soil samples with the K concentration of 0.1~3.3% were prepared. LIBS spectra at the wavelength of 723.62~808.24 nm were collected, and then analyzed with ANN and PLS method. The PLS model presented the result of R2 val=0.92 and RMSEV=0.26, the ANN model presented the result of R2 val=0.82 and RMSEV=0.40. ANN model showed under-fitting and the PLS model performed a better RPD than that of ANN. This demonstrated that the linear PLS model is capable to determinate K concentration in the soil using LIBS.

Paper Details

Date Published: 12 March 2019
PDF: 5 pages
Proc. SPIE 11023, Fifth Symposium on Novel Optoelectronic Detection Technology and Application, 110230Z (12 March 2019); doi: 10.1117/12.2521029
Show Author Affiliations
Chengxu Lü, Chinese Academy of Agricultural Mechanization Sciences (China)
Xunpeng Jiang, COFCO Feed Co., Ltd. (China)
Yanwei Yuan, Chinese Academy of Agricultural Mechanization Sciences (China)
Kang Niu, Chinese Academy of Agricultural Mechanization Sciences (China)
Yannan Qi, Chinese Academy of Agricultural Mechanization Sciences (China)
Junning Zhang, Chinese Academy of Agricultural Mechanization Sciences (China)


Published in SPIE Proceedings Vol. 11023:
Fifth Symposium on Novel Optoelectronic Detection Technology and Application
Qifeng Yu; Wei Huang; You He, Editor(s)

© SPIE. Terms of Use
Back to Top