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Sorption of Bentazone, Dichlorprop, MCPA, and Propiconazole in Reference Soils from Norway

^a The Norwegian Crop Research Institute, Plant Protection Centre, Høgskoleveien 7, N-1432 Ås, Norway
^b The Norwegian Crop Research Institute, Plant Protection Centre, Pesticide Laboratory, Osloveien 1, N-1430 Ås, Norway

View larger version (31K): [in a new window]   Fig. 1. Percent sorption of (a) bentazone, (b) dichlorprop, (c) MCPA, and (d) propiconazole on three different soils versus time. The initial concentrations were 7.1, 5.1, 6.2, and 5.1 mg L-1 of bentazone, dichlorprop, MCPA, and propiconazole, respectively.

View larger version (31K): [in a new window]   Fig. 2. Percent desorption of (a) bentazone, (b) diclorprop, (c) MCPA, and (d) propiconazole on three different soils versus time.

View larger version (33K): [in a new window]   Fig. 3. Freundlich isotherms fitted to sorption data of (a) bentazone, (b) dichlorprop, (c) MCPA, and (d) propiconazole on three different soils using nonlinear regression analysis.