Carbon and nitrogen analysis of soil fractions using near-infrared reflectance spectroscopy

M. J. Morra; M. H. Hall; L. L. Freeborn

doi:10.2136/sssaj1991.03615995005500010051x

Carbon and nitrogen analysis of soil fractions using near-infrared reflectance spectroscopy

M. J. Morra, M. H. Hall, L. L. Freeborn

Plant Science

Research output: Contribution to journal › Article › peer-review

165 Scopus citations

Abstract

A nondestructive method to determine total C and N concentrations in soil size fractions is desirable when a limited sample is available. Near-infrared reflectance spectroscopy (NIRS) was used to determine the total C and N concentration in silt (50.0-2.0 μm) and coarse clay (2.0-0.2 μm), separated from 12 surface soils, by regressing the diffuse reflectance of near-infrared radiation with constituent concentrations determined using combustion techniques. Equation development with only silt samples improved the accuracy of NIRS calibration equations. It is concluded that NIRS can be used to predict C and N concentrations in soil size fractions. -from Authors

Original language	English (US)
Pages (from-to)	288-291
Number of pages	4
Journal	Soil Science Society of America Journal
Volume	55
Issue number	1
DOIs	https://doi.org/10.2136/sssaj1991.03615995005500010051x
State	Published - Jan 1 1991

All Science Journal Classification (ASJC) codes

Soil Science

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abstract = "A nondestructive method to determine total C and N concentrations in soil size fractions is desirable when a limited sample is available. Near-infrared reflectance spectroscopy (NIRS) was used to determine the total C and N concentration in silt (50.0-2.0 μm) and coarse clay (2.0-0.2 μm), separated from 12 surface soils, by regressing the diffuse reflectance of near-infrared radiation with constituent concentrations determined using combustion techniques. Equation development with only silt samples improved the accuracy of NIRS calibration equations. It is concluded that NIRS can be used to predict C and N concentrations in soil size fractions. -from Authors",

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T1 - Carbon and nitrogen analysis of soil fractions using near-infrared reflectance spectroscopy

AU - Morra, M. J.

AU - Hall, M. H.

AU - Freeborn, L. L.

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N2 - A nondestructive method to determine total C and N concentrations in soil size fractions is desirable when a limited sample is available. Near-infrared reflectance spectroscopy (NIRS) was used to determine the total C and N concentration in silt (50.0-2.0 μm) and coarse clay (2.0-0.2 μm), separated from 12 surface soils, by regressing the diffuse reflectance of near-infrared radiation with constituent concentrations determined using combustion techniques. Equation development with only silt samples improved the accuracy of NIRS calibration equations. It is concluded that NIRS can be used to predict C and N concentrations in soil size fractions. -from Authors

AB - A nondestructive method to determine total C and N concentrations in soil size fractions is desirable when a limited sample is available. Near-infrared reflectance spectroscopy (NIRS) was used to determine the total C and N concentration in silt (50.0-2.0 μm) and coarse clay (2.0-0.2 μm), separated from 12 surface soils, by regressing the diffuse reflectance of near-infrared radiation with constituent concentrations determined using combustion techniques. Equation development with only silt samples improved the accuracy of NIRS calibration equations. It is concluded that NIRS can be used to predict C and N concentrations in soil size fractions. -from Authors

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