A comparative study of MIR and NIR spectral models using ball-milled and sieved soil for the prediction of a range soil physical and chemical parameters

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy（2022）

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摘要

•Ball-milled and < 2 mm soils showed similar accuracy in MIR and NIR spectral models.•Grinding soils did not improve the accuracy in both MIR and NIR models.•MIR/NIR spectroscopy can distinguish first horizon from subsurface horizon soils.•Chemical information is the same in ball-milled and < 2 mm spectra models.•MIR/NIR spectroscopy can be used to determine a range of soil attributes.

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关键词

Irish soil information system,Soil particle size,Soil analysis,Machine learning,Support Vector Machine,PLS

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