Abstract: The herbicide efficacy of SL-950 6%SC single agent and various mixtures were assayed on the corn field. The result showed that all 14 chemical had no phytotoxic effect on corn and high herbicide efficacy. SL-950 6%SC and SL-9504% SC single agent significantly increased the yield of corn 15.22% and 9.76%. Yield increase effects were also observed from the plant treated by SL-950 6% SC, SL-950 4% SC, and Nicosulfuron 4% SC which was mixed with 38% atrazine,respectively. Moreover, SL-950 6% SC mixed with72% 2, 4-D also showed yield increase effects in this study.