“…For this study, the ineffectiveness of acetochlor would be related to the recurring rains that occurred in the days following the spreading ( Fig. 1 ) and then to the low organic matter content ( Table 3 ) characterizing the majority of soils in the Haut-Katanga province [ 51 ]. These conditions reduce the adsorption potential of acetochlor to soil colloids and then favor its high accumulation in the rhizosphere [ 52 ].…”