Pesticide dynamics in agroecosystems: Assessing climatic and hydro-physical effects in a soybean cycle under no-tillage
The high rate of No-Tillage (NT) adoption in Argentina has been followed by conspicuous application of herbicides due to RR crops selection and recently due to weed resistance. In addition, no-tillage in the Rolling Pampa (Argentina) with absence of crop rotation and scarce crop residues, led to physical degradation (low infiltration rates, platy structure development) having strong implications on water dynamics and the risk of soil and water contamination. Several factors can influence the mobility of pesticides in the landscape. However, measurement of soil hydro-physical and climate traits as determinants of pesticide dynamics are still scarce. In this study, pesticides from soil and runoff (Glyphosate, AMPA, S-Metolachlor, Sulfentrazone), and hydro-physical and climatic variables were measured at the field in an entire soybean cycle under NT. Temporal dynamics of runoff and saturated hydraulic conductivity was measured by rainfall simulations and disc permeameters together with soil bulk density, soil moisture, crop residues, rainfall and rainfall erosivity. Besides, soil structure was evaluated through cultural profile method. In the Vertic Argiudoll (silty clay loam) pesticides mobility were related to the number of days after agrochemical application modulated also by heavy natural rainfalls occurred during the experiment that lowered agrochemical concentration mostly in runoff. Temporal hydro-physical properties and spatial soil structural variability, together with strong climatic events governed runoff process affecting pesticides mobility while no strong pesticide accumulation in the plots was observed in this study due to low saturated hydraulic conductivity, high runoff coefficients and poor soil structural traits. Thus, the selection of appropriate agricultural management is a key factor to modify hydro-physical top soil dynamics to change hydrological partition from horizontal to vertical fluxes, in particular in soils with poor structural condition.
Main Authors: | , , , , , , , |
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Format: | info:ar-repo/semantics/artículo biblioteca |
Language: | eng |
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Elsevier
2022-09
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Subjects: | Lluvia Simulada, Estructura del Suelo, Plaguicidas, Glifosato, Metolacloro, Sulfentrazona, Agroecosistemas, Simulated Rainfall, Soil Structure, Pesticides, Glyphosate, Metolachlor, Sulfentrazone, Agroecocystems, |
Online Access: | http://hdl.handle.net/20.500.12123/13377 https://www.sciencedirect.com/science/article/pii/S0167198722001751 https://doi.org/10.1016/j.still.2022.105489 |
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Lluvia Simulada Estructura del Suelo Plaguicidas Glifosato Metolacloro Sulfentrazona Agroecosistemas Simulated Rainfall Soil Structure Pesticides Glyphosate Metolachlor Sulfentrazone Agroecocystems Lluvia Simulada Estructura del Suelo Plaguicidas Glifosato Metolacloro Sulfentrazona Agroecosistemas Simulated Rainfall Soil Structure Pesticides Glyphosate Metolachlor Sulfentrazone Agroecocystems |
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Lluvia Simulada Estructura del Suelo Plaguicidas Glifosato Metolacloro Sulfentrazona Agroecosistemas Simulated Rainfall Soil Structure Pesticides Glyphosate Metolachlor Sulfentrazone Agroecocystems Lluvia Simulada Estructura del Suelo Plaguicidas Glifosato Metolacloro Sulfentrazona Agroecosistemas Simulated Rainfall Soil Structure Pesticides Glyphosate Metolachlor Sulfentrazone Agroecocystems Behrends Kraemer, Filipe Castiglioni, Mario Guillermo Chagas, Celio Ignacio De Paula, R. Sainz, Daiana Soledad De Geronimo, Eduardo Aparicio, Virginia Carolina Ferraro, Diego Omar Pesticide dynamics in agroecosystems: Assessing climatic and hydro-physical effects in a soybean cycle under no-tillage |
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The high rate of No-Tillage (NT) adoption in Argentina has been followed by conspicuous application of herbicides due to RR crops selection and recently due to weed resistance. In addition, no-tillage in the Rolling Pampa (Argentina) with absence of crop rotation and scarce crop residues, led to physical degradation (low infiltration rates, platy structure development) having strong implications on water dynamics and the risk of soil and water contamination. Several factors can influence the mobility of pesticides in the landscape. However, measurement of soil hydro-physical and climate traits as determinants of pesticide dynamics are still scarce. In this study, pesticides from soil and runoff (Glyphosate, AMPA, S-Metolachlor, Sulfentrazone), and hydro-physical and climatic variables were measured at the field in an entire soybean cycle under NT. Temporal dynamics of runoff and saturated hydraulic conductivity was measured by rainfall simulations and disc permeameters together with soil bulk density, soil moisture, crop residues, rainfall and rainfall erosivity. Besides, soil structure was evaluated through cultural profile method. In the Vertic Argiudoll (silty clay loam) pesticides mobility were related to the number of days after agrochemical application modulated also by heavy natural rainfalls occurred during the experiment that lowered agrochemical concentration mostly in runoff. Temporal hydro-physical properties and spatial soil structural variability, together with strong climatic events governed runoff process affecting pesticides mobility while no strong pesticide accumulation in the plots was observed in this study due to low saturated hydraulic conductivity, high runoff coefficients and poor soil structural traits. Thus, the selection of appropriate agricultural management is a key factor to modify hydro-physical top soil dynamics to change hydrological partition from horizontal to vertical fluxes, in particular in soils with poor structural condition. |
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Lluvia Simulada Estructura del Suelo Plaguicidas Glifosato Metolacloro Sulfentrazona Agroecosistemas Simulated Rainfall Soil Structure Pesticides Glyphosate Metolachlor Sulfentrazone Agroecocystems |
author |
Behrends Kraemer, Filipe Castiglioni, Mario Guillermo Chagas, Celio Ignacio De Paula, R. Sainz, Daiana Soledad De Geronimo, Eduardo Aparicio, Virginia Carolina Ferraro, Diego Omar |
author_facet |
Behrends Kraemer, Filipe Castiglioni, Mario Guillermo Chagas, Celio Ignacio De Paula, R. Sainz, Daiana Soledad De Geronimo, Eduardo Aparicio, Virginia Carolina Ferraro, Diego Omar |
author_sort |
Behrends Kraemer, Filipe |
title |
Pesticide dynamics in agroecosystems: Assessing climatic and hydro-physical effects in a soybean cycle under no-tillage |
title_short |
Pesticide dynamics in agroecosystems: Assessing climatic and hydro-physical effects in a soybean cycle under no-tillage |
title_full |
Pesticide dynamics in agroecosystems: Assessing climatic and hydro-physical effects in a soybean cycle under no-tillage |
title_fullStr |
Pesticide dynamics in agroecosystems: Assessing climatic and hydro-physical effects in a soybean cycle under no-tillage |
title_full_unstemmed |
Pesticide dynamics in agroecosystems: Assessing climatic and hydro-physical effects in a soybean cycle under no-tillage |
title_sort |
pesticide dynamics in agroecosystems: assessing climatic and hydro-physical effects in a soybean cycle under no-tillage |
publisher |
Elsevier |
publishDate |
2022-09 |
url |
http://hdl.handle.net/20.500.12123/13377 https://www.sciencedirect.com/science/article/pii/S0167198722001751 https://doi.org/10.1016/j.still.2022.105489 |
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oai:localhost:20.500.12123-133772022-11-10T14:58:22Z Pesticide dynamics in agroecosystems: Assessing climatic and hydro-physical effects in a soybean cycle under no-tillage Behrends Kraemer, Filipe Castiglioni, Mario Guillermo Chagas, Celio Ignacio De Paula, R. Sainz, Daiana Soledad De Geronimo, Eduardo Aparicio, Virginia Carolina Ferraro, Diego Omar Lluvia Simulada Estructura del Suelo Plaguicidas Glifosato Metolacloro Sulfentrazona Agroecosistemas Simulated Rainfall Soil Structure Pesticides Glyphosate Metolachlor Sulfentrazone Agroecocystems The high rate of No-Tillage (NT) adoption in Argentina has been followed by conspicuous application of herbicides due to RR crops selection and recently due to weed resistance. In addition, no-tillage in the Rolling Pampa (Argentina) with absence of crop rotation and scarce crop residues, led to physical degradation (low infiltration rates, platy structure development) having strong implications on water dynamics and the risk of soil and water contamination. Several factors can influence the mobility of pesticides in the landscape. However, measurement of soil hydro-physical and climate traits as determinants of pesticide dynamics are still scarce. In this study, pesticides from soil and runoff (Glyphosate, AMPA, S-Metolachlor, Sulfentrazone), and hydro-physical and climatic variables were measured at the field in an entire soybean cycle under NT. Temporal dynamics of runoff and saturated hydraulic conductivity was measured by rainfall simulations and disc permeameters together with soil bulk density, soil moisture, crop residues, rainfall and rainfall erosivity. Besides, soil structure was evaluated through cultural profile method. In the Vertic Argiudoll (silty clay loam) pesticides mobility were related to the number of days after agrochemical application modulated also by heavy natural rainfalls occurred during the experiment that lowered agrochemical concentration mostly in runoff. Temporal hydro-physical properties and spatial soil structural variability, together with strong climatic events governed runoff process affecting pesticides mobility while no strong pesticide accumulation in the plots was observed in this study due to low saturated hydraulic conductivity, high runoff coefficients and poor soil structural traits. Thus, the selection of appropriate agricultural management is a key factor to modify hydro-physical top soil dynamics to change hydrological partition from horizontal to vertical fluxes, in particular in soils with poor structural condition. EEA Balcarce Fil: Behrends Kraemer, F. Universidad de Buenos Aires. Facultad de Agronomía; Argentina. Fil: Behrends Kraemer, F. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Fil: Castiglioni, M.G. Universidad de Buenos Aires. Facultad de Agronomía; Argentina. Fil: Chagas, C.I. Universidad de Buenos Aires. Facultad de Agronomía; Argentina. Fil: De Paula, R. Universidad de Buenos Aires. Facultad de Agronomía; Argentina. Fil: Sainz, Daiana Soledad. Universidad de Buenos Aires. Facultad de Agronomía; Argentina. Fil: Sainz, Daiana Soledad. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Investigación de Suelos; Argentina. Fil: De Gerónimo, Eduardo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina. Fil: Aparicio, Virginia Carolina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina. Fil: Ferraro, D.O. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Fil: Ferraro, D.O. Universidad de Buenos Aires. Facultad de Agronomía; Argentina. 2022-11-10T14:44:05Z 2022-11-10T14:44:05Z 2022-09 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/13377 https://www.sciencedirect.com/science/article/pii/S0167198722001751 0167-1987 https://doi.org/10.1016/j.still.2022.105489 eng info:eu-repo/semantics/restrictedAccess application/pdf Elsevier Soil and Tillage Research 223 : 105489 (September 2022) |