Fig. 8 (A) Simulation of acifluorfen elution from intact and no-till (NT) soil column 1 generated using best-fit values for k_d in the 0–10 and 20–30 cm depths compared with measured effluent concentrations. (B) Distribution of residual ¹⁴C (unextractable and extractable, exclusive of acifluorfen) with depth obtained using best-fit values for k_d compared with measured residual ¹⁴C

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