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- Title
Dissipation and Leaching of Acephate, Chlorpyrifos, and Their Main Metabolites in Field Soils of Malaysia.
- Authors
Chai, L. K.; Mohd-Tahir, N.; Hansen, S.; Hansen, H. C. B.
- Abstract
The article discusses research that evaluated the ecological impacts associated with soil drenching in intensive cropping systems. This process, which applies preventative pesticides at high rates prior to planting a crop, may increase the risk of leaching, soil functioning, and pesticide uptake in the planted crop. In a Malaysian field study the degradation rates and migration of acephate, chlorpyrifos, and their primary metabolites were evaluated in clayey red yellow podzolic, alluvial, and red yellow podzolic soils. Solar radiation was found to affect initial concentrations, and activation processes were examined. The half-lives of both pesticides were ascertained.
- Subjects
MALAYSIA; PESTICIDE monitoring; PESTICIDE toxicology; ACEPHATE; CHLORPYRIFOS; SOIL pollution research; SOIL testing; SOIL classification; SOIL leaching; NUTRIENT uptake
- Publication
Journal of Environmental Quality, 2009, Vol 38, Issue 3, p1160
- ISSN
0047-2425
- Publication type
Article
- DOI
10.2134/jeq2007.0644