Fig. 2 Acifluorfen sorption kinetics for: (A) 0–10 cm, (B) 10–20 cm, and (C) 20–30 cm depth increments in Dundee conventional till (CT) and no-till (NT) soil. Curves show best-fits of the two-site equilibrium–kinetic model to each time-course data set. All data are relative to equilibrium sorption