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 | Acceso al texto completo restringido a Biblioteca INIA La Estanzuela. Por información adicional contacte bib_le@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
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Fecha actual : |
23/09/2019 |
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Actualizado : |
23/09/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
B - 1 |
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Autor : |
MORON, A.; COZZOLINO, D. |
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Afiliación : |
DAVID ALEJANDRO MORON YACOEL, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; DANIEL COZZOLINO GÓMEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Application of near infrared reflectance spectroscopy for the analysis of organic C, total N and pH in soils of Uruguay. |
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Fecha de publicación : |
2002 |
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Fuente / Imprenta : |
Journal of Near Infrared Spectroscopy, 2002, Volume 10, Issue 3, Pages 215-221. |
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DOI : |
10.1255/jnirs.338 |
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Idioma : |
Inglés |
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Contenido : |
Near infrared (NIR) reflectance spectroscopy was used to analyse samples (n = 332) from different soils from Uruguay (South America) for organic carbon (OC), total nitrogen (N) and pH. One set (n = 200) of samples randomly selected was used to develop the NIR calibrations while the remaining (n = 132) samples were used as the validation set. The samples were scanned in a small circular cup in reflectance mode (400?2500 nm), using a Foss NIRSystems 6500 (Silver Spring, MD, USA). Modified partial least squares (MPLS) was used to produce the calibration models and cross-validation was used to avoid collinearity effects among variables. Three mathematical treatments and four scatter corrections were also applied. The calibration coefficient of determination (R2 CAL) and the standard error in cross-validation (SECV) were 0.94 (SECV: 1.9) for OC; 0.91 (SECV: 0.19) for total N in g kg?1 and 0.93 (SECV:0.18) for pH, respectively. The simple correlation coefficient of validation (rVAL) and the standard errors of prediction (SEP) were 0.74 and 5; 0.73 and 0.4; 0.84 and 0.28 for OC, total N and pH, respectively. |
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Palabras claves : |
ESPECTROSCOPIA INFRARROJA; NIR; ORGANIC CARBON; PH; REFLECTANCE SPECTROSCOPY; SUELOS DEL URUGUAY; TOTAL NITROGEN. |
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Thesagro : |
NIRS; SUELOS. |
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Asunto categoría : |
-- |
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Marc : |
LEADER 01892naa a2200253 a 4500
001 1060210
005 2019-09-23
008 2002 bl uuuu u00u1 u #d
024 7 $a10.1255/jnirs.338$2DOI
100 1 $aMORON, A.
245 $aApplication of near infrared reflectance spectroscopy for the analysis of organic C, total N and pH in soils of Uruguay.$h[electronic resource]
260 $c2002
520 $aNear infrared (NIR) reflectance spectroscopy was used to analyse samples (n = 332) from different soils from Uruguay (South America) for organic carbon (OC), total nitrogen (N) and pH. One set (n = 200) of samples randomly selected was used to develop the NIR calibrations while the remaining (n = 132) samples were used as the validation set. The samples were scanned in a small circular cup in reflectance mode (400?2500 nm), using a Foss NIRSystems 6500 (Silver Spring, MD, USA). Modified partial least squares (MPLS) was used to produce the calibration models and cross-validation was used to avoid collinearity effects among variables. Three mathematical treatments and four scatter corrections were also applied. The calibration coefficient of determination (R2 CAL) and the standard error in cross-validation (SECV) were 0.94 (SECV: 1.9) for OC; 0.91 (SECV: 0.19) for total N in g kg?1 and 0.93 (SECV:0.18) for pH, respectively. The simple correlation coefficient of validation (rVAL) and the standard errors of prediction (SEP) were 0.74 and 5; 0.73 and 0.4; 0.84 and 0.28 for OC, total N and pH, respectively.
650 $aNIRS
650 $aSUELOS
653 $aESPECTROSCOPIA INFRARROJA
653 $aNIR
653 $aORGANIC CARBON
653 $aPH
653 $aREFLECTANCE SPECTROSCOPY
653 $aSUELOS DEL URUGUAY
653 $aTOTAL NITROGEN
700 1 $aCOZZOLINO, D.
773 $tJournal of Near Infrared Spectroscopy, 2002, Volume 10, Issue 3, Pages 215-221.
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