SWAT Literature Database for Peer-Reviewed Journal Articles

Title:Characterization of fate and transport of Isoxaflutole, a soil-applied corn herbicide, in surface water using a watershed model 
Authors:Ramanarayanan, T., B. Narasimhan and R. Srinivasan 
Journal:Journal of Agricultural and Food Chemistry 
Volume (Issue):53(22) 
Article ID: 
URL (non-DOI journals): 
Broad Application Category:hydrologic and pollutant 
Primary Application Category:pesticide, antibiotic and/or PFAS fate and transport 
Secondary Application Category:hydrologic assessment 
Watershed Description:49.4 ha LaBelle Lake, 13.2 km^2 Grindstone Reservoir, 41.1 km^2 Bluestem Reservoir and 1,434,6 km^2 Rathbun Reservoir drainage areas, located respectively in northeast Missouri, northwest Missouri, south central Iowa and southeast Nebraska, U.S. 
Calibration Summary: 
Validation Summary:graphical comparisons with measured flows at 2 Rathbun gauges; graphical comparisons of simulated & measured TRR losses are shown for all four watersheds 
General Comments:SWAT was used to simulate processes identified in conceptual models for two pesticides: Isoaxaflutole & RPA 202248. The two chemicals were combined and treated as a single combined compound (designated as total relevant residues or TRR), because isoxaflutole degrades rapidly to RPA 202248. Following validation, the fate of TRR residues was simulated in each water body using long-term historical weather. The results indicate that long-term accumulation of isoxaflutole & RPA 202248 is not occurring in semisteticuater bodies. 
Keywords:Isoxaflutole; watershed assessment; water quality modeling; SWAT; flushing index