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1 November 2002 Comparison of fluometuron sorption to soil from a filter strip and cropped field
Alfred Rankins, David R. Shaw, William L. Kingery
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A laboratory experiment was conducted to compare the adsorption and desorption of fluometuron between two soils, one collected from an eastern gamagrass filter strip and the other from a cropped field. Fluometuron adsorption to soil collected from the filter strip was higher than to soil collected from the cropped field. Kd values for fluometuron ranged from 1.9 to 3.6 for soil from a cropped area, compared with 2.9 to 5.3 for soil from the filter strip, indicating a weak to moderate binding affinity for fluometuron. The total fluometuron desorbed ranged from 48 to 79% of that adsorbed, most of which (50 to 59% of the total amount desorbed) occurred during the first desorption cycle with both soils. Approximately 11% less fluometuron desorbed when a filter strip was present. Results indicate that eastern gamagrass filter strips can influence adsorption–desorption processes between fluometuron and a Brooksville silty clay soil by altering the soil properties, specifically soil organic matter.

Nomenclature: Fluometuron; eastern gamagrass, Tripsacum dactyloides L.

Alfred Rankins, David R. Shaw, and William L. Kingery "Comparison of fluometuron sorption to soil from a filter strip and cropped field," Weed Science 50(6), 820-823, (1 November 2002).[0820:COFSTS]2.0.CO;2
Received: 13 December 1999; Accepted: 1 May 2002; Published: 1 November 2002
binding affinity
Filter strip
Kd values
organic matter content
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