Journal
SCIENCE OF THE TOTAL ENVIRONMENT
Volume 432, Issue -, Pages 251-256Publisher
ELSEVIER
DOI: 10.1016/j.scitotenv.2012.05.066
Keywords
Pesticide; Isoproturon; Calcareous soil; Sorption; Empirical model
Categories
Funding
- Agence de l'Eau Seine-Normandie
- Ville de Reims
- Region Champagne-Ardenne
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Eleven soils collected from Champagne-Ardenne area (France) were used to investigate isoproturon sorption in laboratory conditions. Our results identified the organic matter (OM) and the ratio of calcite content to OM content (Rt) as the main two parameters governing isoproturon retention in soils. While organic matter favored pesticide sorption, calcite had an antagonistic effect since it limited isoproturon retention. The Rt ratio of calcite content to organic matter content in soils appeared to be a parameter that should be considered in predictive models in addition to OM in regions presenting calcareous soils. Adsorption of isoproturon as a function of Rt and OM was successfully described through a simple empirical model. (C) 2012 Elsevier B.V. All rights reserved.
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