An experiment was conducted at St. Gabriel, Louisiana, to quantify the movement of soil, plant nutrients, and herbicides in surface runoff from sugarcane plots under three different management practices. This variation of inputs was accomplished by applying fertilizer and pesticides at the same, higher, and lower rates than are recommended by the Louisiana Cooperative Extension Service for sugarcane in Louisiana. The higher than standard rate (high management treatment) consisted of 202, 90, and 135 kg/ha of N, P sub(2)O sub(5), and K sub(2)O, respectively, while atrazine and metribuzin were applied broadcast (100% coverage) at rates of 2 and 2.2 kg/ha, respectively. The standard rate (standard management treatment) consisted of 135, 45, and 90 kg/ha of N, P sub(2)O sub(5), and K sub(2)O, respectively, while atrazine and metribuzin were applied in a 0.9-m band over the row (50% coverage) at rates of 0.8 and 1.1 kg/ha, respectively. The lower than standard rate (low management treatment) consisted of 68, 0, and 0 kg/ha of N, P sub(2)O sub(5), and K sub(2)O, respectively, while atrazine and metribuzin were applied in a 0.6-m band over the row (33% coverage) at rates of 0.70 and 0.74 kg/ha, respectively. These data were needed to determine the effectiveness of best management practices (BMPs) on reducing non-point source pollutants from sugarcane fields. For three years of sugarcane growth, the average soil losses differed only slightly among the three management treatments with 17.30, 17.29, and 18.07 t/ha measured from high, standard, and low management practices, respectively. Total nitrogen loss from the high management practice was 23.31 kg/ha, which was 109% more than the 11.14 kg/ha measured from the low management treatment. Total phosphorous losses were about the same among treatments with 14.89, 13.80, and 12.65 kg/ha measured from the high, standard, and low management practices, respectively. Total potassium losses were similar for the high (100.71 kg/ha) and standard (104.36 kg/ha) treatments. These losses were 29% higher than the 79.34 kg/ha measured from the low management treatment. Herbicide losses also varied among treatments. Average annual atrazine losses were 157, 57, and 34 g/ha from the high, standard, and low management treatments, respectively. Average annual metribuzin losses were 78, 45, and 13 g/ha from the high, standard, and low management treatments, respectively. The soybean treatment provided the best water quality for the fourth year of the sugar cane sequence. This treatment reduced surface runoff and soil loss by 12 and 17%, respectively, from the fallow treatment. The winter wheat provided lower water quality than did the fallow treatment. This treatment increased surface runoff and soil loss by 7 and 31%, respectively, from the fallow.