Application timing as a mitigation tool for pesticide leaching to drains in northwest Europe

Study region: Artificially drained agricultural land in northwest Europe. Study focus: The use of application timing as a mitigation tool for pesticide leaching to drains was investigated by simulating pesticide fate after application every day in a pesticide-specific application window, using the a...

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Main Authors: M. Holbak, J. Vuaille, E. Diamantopoulos, M.E. Styczen, C.T. Petersen, B.W. Strobel, P. Abrahamsen
Format: Article
Language:English
Published: Elsevier 2024-06-01
Series:Journal of Hydrology: Regional Studies
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S221458182400082X
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author M. Holbak
J. Vuaille
E. Diamantopoulos
M.E. Styczen
C.T. Petersen
B.W. Strobel
P. Abrahamsen
author_facet M. Holbak
J. Vuaille
E. Diamantopoulos
M.E. Styczen
C.T. Petersen
B.W. Strobel
P. Abrahamsen
author_sort M. Holbak
collection DOAJ
description Study region: Artificially drained agricultural land in northwest Europe. Study focus: The use of application timing as a mitigation tool for pesticide leaching to drains was investigated by simulating pesticide fate after application every day in a pesticide-specific application window, using the agro-hydrological model DAISY. The simulations were carried out for six combinations of pesticide-crop-seasons using three synthetically generated climate series and 800 soil profiles. The simulated drain concentrations were transformed to normalized pesticide concentrations in a hypothetical adjacent stream. Each application day was then characterized by the maximum normalized hourly pesticide concentration in the stream, expressed as the maximum hourly toxic unit (mTU), occurring within 300 days after application. New hydrological insights for the region: The result showed that if the pesticide was applied consistently every year at the best application day, pesticide leaching, in terms of the 90th percentile of mTU, could be reduced by up to 62% compared to a random application. If the pesticide application day was restricted to vary in a five-day period, the 90th percentile of mTU could be reduced by up to 21%. Thus, our study shows that there is a significant mitigation potential for reducing pesticide leaching to drains by tailoring the timing of pesticide application to weather conditions.
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spelling doaj.art-ffd66671053548709a3822c2894de2fb2024-03-21T05:36:47ZengElsevierJournal of Hydrology: Regional Studies2214-58182024-06-0153101734Application timing as a mitigation tool for pesticide leaching to drains in northwest EuropeM. Holbak0J. Vuaille1E. Diamantopoulos2M.E. Styczen3C.T. Petersen4B.W. Strobel5P. Abrahamsen6Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, Frederiksberg C 1871, Denmark; Corresponding author.Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, Frederiksberg C 1871, DenmarkDepartment of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, Frederiksberg C 1871, Denmark; Chair of Soil Physics, University of Bayreuth, Bayreuth, GermanyDepartment of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, Frederiksberg C 1871, DenmarkDepartment of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, Frederiksberg C 1871, DenmarkDepartment of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, Frederiksberg C 1871, DenmarkDepartment of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, Frederiksberg C 1871, DenmarkStudy region: Artificially drained agricultural land in northwest Europe. Study focus: The use of application timing as a mitigation tool for pesticide leaching to drains was investigated by simulating pesticide fate after application every day in a pesticide-specific application window, using the agro-hydrological model DAISY. The simulations were carried out for six combinations of pesticide-crop-seasons using three synthetically generated climate series and 800 soil profiles. The simulated drain concentrations were transformed to normalized pesticide concentrations in a hypothetical adjacent stream. Each application day was then characterized by the maximum normalized hourly pesticide concentration in the stream, expressed as the maximum hourly toxic unit (mTU), occurring within 300 days after application. New hydrological insights for the region: The result showed that if the pesticide was applied consistently every year at the best application day, pesticide leaching, in terms of the 90th percentile of mTU, could be reduced by up to 62% compared to a random application. If the pesticide application day was restricted to vary in a five-day period, the 90th percentile of mTU could be reduced by up to 21%. Thus, our study shows that there is a significant mitigation potential for reducing pesticide leaching to drains by tailoring the timing of pesticide application to weather conditions.http://www.sciencedirect.com/science/article/pii/S221458182400082XPesticide leachingDrainsMitigationModellingApplication time
spellingShingle M. Holbak
J. Vuaille
E. Diamantopoulos
M.E. Styczen
C.T. Petersen
B.W. Strobel
P. Abrahamsen
Application timing as a mitigation tool for pesticide leaching to drains in northwest Europe
Journal of Hydrology: Regional Studies
Pesticide leaching
Drains
Mitigation
Modelling
Application time
title Application timing as a mitigation tool for pesticide leaching to drains in northwest Europe
title_full Application timing as a mitigation tool for pesticide leaching to drains in northwest Europe
title_fullStr Application timing as a mitigation tool for pesticide leaching to drains in northwest Europe
title_full_unstemmed Application timing as a mitigation tool for pesticide leaching to drains in northwest Europe
title_short Application timing as a mitigation tool for pesticide leaching to drains in northwest Europe
title_sort application timing as a mitigation tool for pesticide leaching to drains in northwest europe
topic Pesticide leaching
Drains
Mitigation
Modelling
Application time
url http://www.sciencedirect.com/science/article/pii/S221458182400082X
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