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).
Auteurs principaux: | , |
---|---|
Format: | Digital revista |
Langue: | eng |
Publié: |
Universidad Nacional de Colombia - Sede Bogotá - Facultad de Ciencias Agrarias
2018
|
Accès en ligne: | https://revistas.unal.edu.co/index.php/agrocol/article/view/71809 |
Tags: |
Ajouter un tag
Pas de tags, Soyez le premier à ajouter un tag!
|
id |
oai:www.revistas.unal.edu.co:article-71809 |
---|---|
record_format |
ojs |
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 |
work_keys_str_mv |
AT ortizeuseppe assessingwaterdemandwithremotesensingfortwocoriandervarieties AT torresenriquea assessingwaterdemandwithremotesensingfortwocoriandervarieties AT ortizeuseppe determinaciondelasnecesidadeshidricasdedosvariedadesdecilantromediantesensoresremotos AT torresenriquea determinaciondelasnecesidadeshidricasdedosvariedadesdecilantromediantesensoresremotos |
_version_ |
1755913404911976448 |