Study of the effect of olive mill waste >Alperujo> addition on the persistence of diuron in olive groves
[ES]: El objetivo de este trabajo ha sido estudiar el efecto de la aplicación de alperujo (residuo de almazara) sobre la persistencia y el movimiento del herbicida diuron [3-(3,4-diclorofenil)-1,1-dimetilurea] en un olivar en Mengíbar (Jaén, España). La parcela se dividió en 2 subparcelas, un en la que no se aplicó enmienda al suelo y otra donde se aplicó alperujo (18000 kg ha -1 ). Tras la aplicación del herbicida a una dosis de 2 kg/ha se tomaron muestras de suelo por triplicado en cada subparcela, a distintas profundidades y distintos días desde la aplicación de diuron. Después de secar, limpiar las muestras de suelo y tamizarlas, se procedió a la extracción de diuron con metanol y se analizó por HPLC. Se observó una mayor cantidad de diurón en el suelo enmendado que en el suelo no enmendado en todas las muestras. Sin embargo, la movilidad de diuron no aumentó con el tiempo en el suelo enmendado. [EN]: The aim of this work was to study the effect of >alperujo> (olive mill waste) on the persistence and the mobility of the herbicide diuron [3-(3,4-dichlorophenyl)-1,1-dimethylurea] in an olive grove from Mengíbar (Jaén, Spain). The plot was divided in two subplots, one where no amendement was applied and another one where >alperujo> was applied to the soil (18.000 kg ha -1 ). After herbicide application at a rate of 2 kg/ha, three replicates of soil were sampled at each subplot, at different depths and different days after diuron application. After drying, cleaning and sieving samples diuron was extracted with methanol and the extracts were analyzed by HPLC. Higher amounts of diuron were recovered from amended soil than from non amended soil in every sample. However, diuron mobility in amen-ded soil did not increase with time.
Main Authors: | Cabrera Mesa, Alegría, Fernández Hernández, A., García-Ortiz Civantos, Concepción, Cox, L., Velarde Muñoz, Pilar, Cornejo, J. |
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Other Authors: | Junta de Andalucía |
Format: | artículo biblioteca |
Language: | Spanish / Castilian |
Published: |
Sociedade de Ciências Agrárias de Portugal
2010
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Online Access: | http://hdl.handle.net/10261/60484 http://dx.doi.org/10.13039/501100003329 http://dx.doi.org/10.13039/501100011011 |
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