Yield gap assessment for late corn with diffferent seeding densities in the central region of Córdoba, Argentina

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The yield gap (BR) in late corn (December) was evaluated in the central region of Córdoba, Argentina, comparing planting densities (DS) of 6 and 8 pl m-2 using the AquaCrop model. Running the model between 1960 and 2017 required analyzing the consistency of the Penman-Monteith method (PM) to estima...

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Autores principales: de la Casa, Antonio, Ovando, Gustavo, Bressanini, Luciano, Díaz, Guillermo, Díaz, Pablo, Miranda, Cristian
Formato: Artículo revista
Lenguaje:Español
Publicado: Facultad de Ciencias Agropecuarias. Área de Difusión Científica 2019
Materias:
AquaCrop
crop coverage
potential yield
risk
cobertura de cultivo
rendimiento potencial
riesgo
Acceso en línea:https://revistas.unc.edu.ar/index.php/agris/article/view/23613
Aporte de:
Revistas de la UNC de Universidad Nacional de Córdoba
id I10-R10article-23613
record_format ojs
institution Universidad Nacional de Córdoba
institution_str I-10
repository_str R-10
container_title_str Revistas de la UNC
language Español
format Artículo revista
topic AquaCrop
crop coverage
potential yield
risk
AquaCrop
cobertura de cultivo
rendimiento potencial
riesgo
spellingShingle AquaCrop
crop coverage
potential yield
risk
AquaCrop
cobertura de cultivo
rendimiento potencial
riesgo
de la Casa, Antonio
Ovando, Gustavo
Bressanini, Luciano
Díaz, Guillermo
Díaz, Pablo
Miranda, Cristian
Yield gap assessment for late corn with diffferent seeding densities in the central region of Córdoba, Argentina
topic_facet AquaCrop
crop coverage
potential yield
risk
AquaCrop
cobertura de cultivo
rendimiento potencial
riesgo
author de la Casa, Antonio
Ovando, Gustavo
Bressanini, Luciano
Díaz, Guillermo
Díaz, Pablo
Miranda, Cristian
author_facet de la Casa, Antonio
Ovando, Gustavo
Bressanini, Luciano
Díaz, Guillermo
Díaz, Pablo
Miranda, Cristian
author_sort de la Casa, Antonio
title Yield gap assessment for late corn with diffferent seeding densities in the central region of Córdoba, Argentina
title_short Yield gap assessment for late corn with diffferent seeding densities in the central region of Córdoba, Argentina
title_full Yield gap assessment for late corn with diffferent seeding densities in the central region of Córdoba, Argentina
title_fullStr Yield gap assessment for late corn with diffferent seeding densities in the central region of Córdoba, Argentina
title_full_unstemmed Yield gap assessment for late corn with diffferent seeding densities in the central region of Córdoba, Argentina
title_sort yield gap assessment for late corn with diffferent seeding densities in the central region of córdoba, argentina
description The yield gap (BR) in late corn (December) was evaluated in the central region of Córdoba, Argentina, comparing planting densities (DS) of 6 and 8 pl m-2 using the AquaCrop model. Running the model between 1960 and 2017 required analyzing the consistency of the Penman-Monteith method (PM) to estimate the daily rate of reference evapotranspiration (ETo) using only maximum and minimum temperature records (ETo_PMTxTn), instead of the complete set of 4 fundamental variables. The ETo_PMTxTn values explain approximately 80 % of the variability of those obtained with the complete set of variables. AquaCrop was calibrated by using crop coverage samples, aerial biomass and soil water that were collected in a plot of late corn during the crop season 2015-2016. Three sowing dates were evaluated, 3 fixed and 3 variables, with no significant differences in BR for both DS. A small advance or delay in planting does not represent a decision affecting climate risk condition. While the increase of DS to 8 pl m-2 produced a significant increase in BR, it also presented average effective yields (RR) that are higher than those obtained with 6 pl m-2 for 47 of the 57 crop cycles analyzed.
publisher Facultad de Ciencias Agropecuarias. Área de Difusión Científica
publishDate 2019
url https://revistas.unc.edu.ar/index.php/agris/article/view/23613
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