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Evaluación de formulaciones de liberación controlada del herbicida flufenacet

Authors: Gómez-Pantoja Cabezas, María Eulalia; López Fernández, E.; Florido Fernández, María del Carmen; Morillo, E.; Undabeytia López, Tomás;

Evaluación de formulaciones de liberación controlada del herbicida flufenacet

Abstract

[ES]: El objetivo del presente trabajo fue comprobar la efectividad de las formulaciones de liberación controlada (FLCs) del herbicida Flufenacet (FLF) previamente elaboradas. Para ello se usaron las formulaciones FLF/ET15 y FLF/B048 que contenían 7,98% y 17,7% de ingrediente activo (i.a.) respectivamente. La liberación in vitro confirmó un perfil de liberación controlada para ambas formulaciones frente a la formulación comercial (FC) Tiara 60®. El herbicida FLF presentó alta adsorción en suelos ácidos con alta cantidad en materia orgánica y óxidos amorfos y baja adsorción en suelos básicos con baja proporción en materia orgánica. En experimentos con columnas de suelos, las FLCs presentaron menor lixiviación que Tiara 60® en todos los suelos bajo estudio, y los datos de bioactividad confirmaron los datos obtenidos en las columnas de suelo a las distintas profundidades, así como los resultados de biodisponibilidad obtenidos en las isotermas de adsorción-desorción.

[EN] : Development of controlled release formulation of herbicide flufenacet. This study was aimed at testing the efficacy of the previously designed controlled release formulations (FLCs) of the herbicide flufenacet (FLF). The formulations FLF/ET15 and FLF/B048 with a.i. contents of 7.98 and 17.7%, respectively, were used. Release in vitro experiments indicated a slow release pattern with respect to the commercial formulation (FC) Tiara 60®. The herbicide FLF was greatly adsorbed in acid soils posing a high amount of organic matter and amorphous oxides; whereas lower sorption was obtained on basic soils with low organic matter content. In soil column experiments, FLCs showed reduced leaching relative to Tiara 60® which paralleled the bioactivity at different depths, and in agreement with the bioavailable amount as inferred from the sorption-desorption experiments

Esta investigación ha recibido financiación a través de los proyectos CMT2009-07425 (MEC) cofinanciado por el Fondo Europeo de Desarrollo Regional (FEDER) y el Proyecto Bilateral Hispano-Argentino PRI-PIBAR-2011-1393 (MINECO- MINCYT). María Eulalia Gómez-Pantoja Cabezas agradece su contratación a cargo del proyecto CMT2009-07425 (MEC).

Ponencia presentada en el XV Congreso de la Sociedad Española de Malherbología SEMh 2015 “La Malherbología y la Transferencia Tecnológica” Sevilla, 19 al 22 de octubre de 2015

Peer Reviewed

Country
Spain
Keywords

Pesticide, Lixiviación, Montmorillonita, Lixiviación., Leaching, Soils, Bioactividad, Plaguicidas, Bioactivity, Montmorillonite, Suelos

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
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