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Soil Analysis Using Visible and Near Infrared Spectroscopy

 Last Update: 2020-11-14
 Source: Internet
 Author: User

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Visible-near infrared diffuse reflectance (vis-N
IR
) spectroscopy is a fast, nondestructive technique well suited for analyses of some of the essential constituents of the soil. These constituents, mainly clay minerals, organic matter and soil water strongly affect conditions for plant growth and influence plant nutrition. Here we describe the process by which vis-NIR spectroscopy can be used to collect soil spectra in the laboratory. Because it is an indirect technique, the succeeding model calibrations and validations that are necessary to obtain reliable predictions about the soil properties of interest are also described in the chapter.

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