Assessing water demand with remote sensing for two coriander varieties

Assessing water demand with remote sensing for two coriander varieties

The use of remote sensing to determine water needs has been successfully applied by several authors to different crops, maintaining, as an important basis, the relationship between the normalized difference vegetation index (NDVI) and biophysical variables, such as the fraction of coverage (fc) and the basal crop coefficient (Kcb). Therefore, this study quantified the water needs of two varieties of coriander (UNAPAL Laurena CL and UNAPAL Precoso CP) based on the response of fc and Kcb, using remote sensors and a water balance according to the FAO-56 methodology. A Campbell Scientific meteorological station, a commercial digital camera and a portable spectro radiometer were used to obtain information on the environmental conditions and the crop. By means of remote sensing associated with a water balance, it was found that the water demand was 156 mm for CL and 151 mm for CP until the foliage harvest (41 d after sowing); additionally, the initial Kcb was 0.14, the mean Kcb was 1.16 (approximately) and the final Kcb was 0.71 (approximately).

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Main Authors: Ortiz, Euseppe, Torres, Enrique A.
Format: Digital revista
Language:eng
Published: Universidad Nacional de Colombia - Sede Bogotá - Facultad de Ciencias Agrarias 2018
Online Access:https://revistas.unal.edu.co/index.php/agrocol/article/view/71809
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spelling oai:www.revistas.unal.edu.co:article-718092019-08-28T21:01:05Z Assessing water demand with remote sensing for two coriander varieties Determinación de las necesidades hídricas de dos variedades de cilantro mediante sensores remotos Ortiz, Euseppe Torres, Enrique A. UNAPAL Coriandrum sativa NDVI water demand. UNAPAL Coriandrum sativa NDVI necesidades hídricas. The use of remote sensing to determine water needs has been successfully applied by several authors to different crops, maintaining, as an important basis, the relationship between the normalized difference vegetation index (NDVI) and biophysical variables, such as the fraction of coverage (fc) and the basal crop coefficient (Kcb). Therefore, this study quantified the water needs of two varieties of coriander (UNAPAL Laurena CL and UNAPAL Precoso CP) based on the response of fc and Kcb, using remote sensors and a water balance according to the FAO-56 methodology. A Campbell Scientific meteorological station, a commercial digital camera and a portable spectro radiometer were used to obtain information on the environmental conditions and the crop. By means of remote sensing associated with a water balance, it was found that the water demand was 156 mm for CL and 151 mm for CP until the foliage harvest (41 d after sowing); additionally, the initial Kcb was 0.14, the mean Kcb was 1.16 (approximately) and the final Kcb was 0.71 (approximately). El uso de la sensores remotos para determinar las necesidades hídricas ha sido aplicada exitosamente por varios autores en diferentes cultivos, manteniendo como base importante la relación existente entre el índice de vegetación de diferencia normalizada (NDVI) con variables biofísicas como la fracción de cobertura (fc) y el coeficiente basal de cultivo (Kcb). Por esta razón, en este estudio se cuantificaron las necesidades hídricas de dos variedades de cilantro (UNAPAL Laurena CL y UNAPAL Precoso CP) basado en la respuesta de la fc y Kcb, utilizando sensores remotos y empleando un balance hídrico según la metodología de FAO-56. Para la obtención de información de las condiciones ambientales y del cultivo, se utilizaron una estación meteorológica Campbell Scientific, una cámara digital comercial y un espectro radiometro portátil. Se encontró, por medio de sensores remotos asociados a un balance hídrico, que la demanda hídrica para CL fue de 156 mm y 151 mm para CP, hasta la cosecha de follaje (41 días después de siembra). Además el Kcb inicial fue de 0.14, el Kcb medio 1.16 (aproximadamente) y el Kcb final 0.71 (aproximadamente). Universidad Nacional de Colombia - Sede Bogotá - Facultad de Ciencias Agrarias 2018-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://revistas.unal.edu.co/index.php/agrocol/article/view/71809 10.15446/agron.colomb.v36n3.71809 Agronomía Colombiana; Vol. 36 No. 3 (2018); 266-273 Agronomía Colombiana; Vol. 36 Núm. 3 (2018); 266-273 Agronomía Colombiana; v. 36 n. 3 (2018); 266-273 2357-3732 0120-9965 eng https://revistas.unal.edu.co/index.php/agrocol/article/view/71809/69731 Copyright (c) 2018 Agronomía Colombiana https://creativecommons.org/licenses/by-nc-sa/4.0
institution UNAL
collection OJS
country Colombia
countrycode CO
component Revista
access En linea
databasecode rev-agrocol
tag revista
region America del Sur
libraryname tema Nacional de Bibliotecas de la UNAL
language eng
format Digital
author Ortiz, Euseppe
Torres, Enrique A.
spellingShingle Ortiz, Euseppe
Torres, Enrique A.
Assessing water demand with remote sensing for two coriander varieties
author_facet Ortiz, Euseppe
Torres, Enrique A.
author_sort Ortiz, Euseppe
title Assessing water demand with remote sensing for two coriander varieties
title_short Assessing water demand with remote sensing for two coriander varieties
title_full Assessing water demand with remote sensing for two coriander varieties
title_fullStr Assessing water demand with remote sensing for two coriander varieties
title_full_unstemmed Assessing water demand with remote sensing for two coriander varieties
title_sort assessing water demand with remote sensing for two coriander varieties
description The use of remote sensing to determine water needs has been successfully applied by several authors to different crops, maintaining, as an important basis, the relationship between the normalized difference vegetation index (NDVI) and biophysical variables, such as the fraction of coverage (fc) and the basal crop coefficient (Kcb). Therefore, this study quantified the water needs of two varieties of coriander (UNAPAL Laurena CL and UNAPAL Precoso CP) based on the response of fc and Kcb, using remote sensors and a water balance according to the FAO-56 methodology. A Campbell Scientific meteorological station, a commercial digital camera and a portable spectro radiometer were used to obtain information on the environmental conditions and the crop. By means of remote sensing associated with a water balance, it was found that the water demand was 156 mm for CL and 151 mm for CP until the foliage harvest (41 d after sowing); additionally, the initial Kcb was 0.14, the mean Kcb was 1.16 (approximately) and the final Kcb was 0.71 (approximately).
publisher Universidad Nacional de Colombia - Sede Bogotá - Facultad de Ciencias Agrarias
publishDate 2018
url https://revistas.unal.edu.co/index.php/agrocol/article/view/71809
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AT ortizeuseppe determinaciondelasnecesidadeshidricasdedosvariedadesdecilantromediantesensoresremotos
AT torresenriquea determinaciondelasnecesidadeshidricasdedosvariedadesdecilantromediantesensoresremotos
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