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Título
Resumen de tesis. Coupling pesticides fate modelling and conservation cropping systems to reduce the agriculture footprints on ecosystems
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Coupling pesticides fate modelling and conservation cropping systems to reduce the agriculture footprints on ecosystems
Autor(es)
Director(es)
Materia
Tesis y disertaciones académicas
Universidad de Salamanca (España)
Tesis Doctoral
Academic dissertations
Agricultura tradicional
Herbicidas
Suelos Conservación
Clasificación UNESCO
2511.08 Mecánica de Suelos (Agricultura)
5102.01 Agricultura
Fecha de publicación
2023
Resumen
[EN] The main
objective of this thesis was to study under real field conditions (experimental plots)
the effect of conservation agricultural practices including intermediate cover crops,
the accumulation of crop residues on the soil surface (mulching), non-tillage, and
direct seeding, on the environmental fate of three herbicides, S-metolachlor
(SMOC), foramsulfuron (FORAM) and thiencarbazone-methyl (TCM). The study
was carried out through: 1) the evaluation of the dissipation, persistence, distribution
and/or mobility of the herbicides in the soil profiles under conventional and conservation
cropping systems, 2) the changes in soil microbial communities influenced by these
agronomic practices as indicators of soil quality and conservation, and 3) the modelling
of the herbicides’ environmental fate using PRZM (Pesticide Root Zone Model) and
MACRO (Water and solute transport in macroporous soils) models, that were
parameterised and validated with data measured under real field conditions to predict the
impact and viability of these agronomic practices on soil sustainability and surface and
groundwater quality in the long-term.
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