Glyphosate dynamics prediction in a soil under conventional and no-tillage systems during the crop cycle

Simulation models are efficient tools to predict the fate of different solutes in agricultural soils. This work aimed to compare measured and predicted glyphosate and AMPA (aminomethyl phosphonic acid; its main metabolite) contents in a soil under no-tillage (NT), and conventional tillage (CT); and...

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Autores principales: Villarreal, Rafael, Soracco, Carlos Germán, Salazar Landea, María Paz, Bellora, Guido Lautaro, Valdés Abellán, Javier, Lozano, Luis Alberto
Formato: Articulo
Lenguaje:Inglés
Publicado: 2020
Materias:
Ciencias Agrarias
Hydraulic conductivity
Solute transport
Pesticide fate
HYDRUS 1-D
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/122155
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-122155
record_format dspace
spelling I19-R120-10915-1221552023-05-29T15:10:33Z http://sedici.unlp.edu.ar/handle/10915/122155 issn:1806-9657 Glyphosate dynamics prediction in a soil under conventional and no-tillage systems during the crop cycle Villarreal, Rafael Soracco, Carlos Germán Salazar Landea, María Paz Bellora, Guido Lautaro Valdés Abellán, Javier Lozano, Luis Alberto 2020 2021-08-04T19:05:19Z en Ciencias Agrarias Hydraulic conductivity Solute transport Pesticide fate HYDRUS 1-D Simulation models are efficient tools to predict the fate of different solutes in agricultural soils. This work aimed to compare measured and predicted glyphosate and AMPA (aminomethyl phosphonic acid; its main metabolite) contents in a soil under no-tillage (NT), and conventional tillage (CT); and to compare the predictions considering constant and time-variable hydraulic properties. Additionally, we evaluated the ability of the model to predict glyphosate and AMPA accumulation during the crop cycle. Hydrus 1-D code was used to predict the glyphosate and AMPA dynamics, considering constant and time-variable hydraulic properties during the studied crop cycle. In general, the prediction of glyphosate and AMPA distribution along the soil profile using HYDRUS 1-D was satisfactory; however, an overestimation of both compounds was observed in the first 0.20 m of the soil probably because of the preferential flow. Additionally, the accumulation process of glyphosate and AMPA in the soil during the crop cycle was underestimated by HYDRUS 1-D, as compared with the observed field data. Simulated data show that higher values of K0 increase the risk of glyphosate and AMPA vertical transport. The inclusion of temporal variation of hydraulic properties in glyphosate and AMPA simulation did not improve the simulation performance, showing that the model is more sensitive to the parameters related to the solutes. From the obtained results, HYDRUS 1-D code allowed to predict glyphosate and AMPA dynamics reasonably well in agricultural soils of the Argentinean Pampas region and is a potential model to give support in the analysis of the environmental risk of leaching and soil contamination. Facultad de Ciencias Agrarias y Forestales Articulo Articulo http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International (CC BY 4.0) application/pdf
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Agrarias
Hydraulic conductivity
Solute transport
Pesticide fate
HYDRUS 1-D
spellingShingle Ciencias Agrarias
Hydraulic conductivity
Solute transport
Pesticide fate
HYDRUS 1-D
Villarreal, Rafael
Soracco, Carlos Germán
Salazar Landea, María Paz
Bellora, Guido Lautaro
Valdés Abellán, Javier
Lozano, Luis Alberto
Glyphosate dynamics prediction in a soil under conventional and no-tillage systems during the crop cycle
topic_facet Ciencias Agrarias
Hydraulic conductivity
Solute transport
Pesticide fate
HYDRUS 1-D
description Simulation models are efficient tools to predict the fate of different solutes in agricultural soils. This work aimed to compare measured and predicted glyphosate and AMPA (aminomethyl phosphonic acid; its main metabolite) contents in a soil under no-tillage (NT), and conventional tillage (CT); and to compare the predictions considering constant and time-variable hydraulic properties. Additionally, we evaluated the ability of the model to predict glyphosate and AMPA accumulation during the crop cycle. Hydrus 1-D code was used to predict the glyphosate and AMPA dynamics, considering constant and time-variable hydraulic properties during the studied crop cycle. In general, the prediction of glyphosate and AMPA distribution along the soil profile using HYDRUS 1-D was satisfactory; however, an overestimation of both compounds was observed in the first 0.20 m of the soil probably because of the preferential flow. Additionally, the accumulation process of glyphosate and AMPA in the soil during the crop cycle was underestimated by HYDRUS 1-D, as compared with the observed field data. Simulated data show that higher values of K0 increase the risk of glyphosate and AMPA vertical transport. The inclusion of temporal variation of hydraulic properties in glyphosate and AMPA simulation did not improve the simulation performance, showing that the model is more sensitive to the parameters related to the solutes. From the obtained results, HYDRUS 1-D code allowed to predict glyphosate and AMPA dynamics reasonably well in agricultural soils of the Argentinean Pampas region and is a potential model to give support in the analysis of the environmental risk of leaching and soil contamination.
format Articulo
Articulo
author Villarreal, Rafael
Soracco, Carlos Germán
Salazar Landea, María Paz
Bellora, Guido Lautaro
Valdés Abellán, Javier
Lozano, Luis Alberto
author_facet Villarreal, Rafael
Soracco, Carlos Germán
Salazar Landea, María Paz
Bellora, Guido Lautaro
Valdés Abellán, Javier
Lozano, Luis Alberto
author_sort Villarreal, Rafael
title Glyphosate dynamics prediction in a soil under conventional and no-tillage systems during the crop cycle
title_short Glyphosate dynamics prediction in a soil under conventional and no-tillage systems during the crop cycle
title_full Glyphosate dynamics prediction in a soil under conventional and no-tillage systems during the crop cycle
title_fullStr Glyphosate dynamics prediction in a soil under conventional and no-tillage systems during the crop cycle
title_full_unstemmed Glyphosate dynamics prediction in a soil under conventional and no-tillage systems during the crop cycle
title_sort glyphosate dynamics prediction in a soil under conventional and no-tillage systems during the crop cycle
publishDate 2020
url http://sedici.unlp.edu.ar/handle/10915/122155
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AT salazarlandeamariapaz glyphosatedynamicspredictioninasoilunderconventionalandnotillagesystemsduringthecropcycle
AT belloraguidolautaro glyphosatedynamicspredictioninasoilunderconventionalandnotillagesystemsduringthecropcycle
AT valdesabellanjavier glyphosatedynamicspredictioninasoilunderconventionalandnotillagesystemsduringthecropcycle
AT lozanoluisalberto glyphosatedynamicspredictioninasoilunderconventionalandnotillagesystemsduringthecropcycle
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