Being a conservative solute, bromide was used to trace potential pathways of pesticide transport under conservation tillage in sloping lands. The maximum concentration of bromide (30 ppm) was found at a depth of 40 em at the top and backslope positions compared to 20 ppm found at a depth of 80 cm at the toe-slope position after 360 days of simulation. Bromide at the toe-slope position moved deeper than at the top and back-slope positions. The potential of groundwater contamination beneath top-slope position is minimum due to lateral transport of the bromide at this slope position.
