应用敌草隆、阿灭净防除蔗田１５种杂草，数量防效在９１．７－９９．４％之间；鲜重防效为９３．０％－９９．８％。播后芽前施药防除禾本科杂草效果明显优于苗期茎叶处理，防除稗草、千金子效果分别提高１６％、３８．７％；但对其余杂草防效差异不明显。苗期施药，阿灭净和敌草隆混用对稗草的防效均显著高于两个单剂的防效，对千金子的效果也优于两种低浓度的各单用效果。混用或播后芽前施药可提高对甘蔗的安全性。 The application of diuron, a net off control of 15 weed species of cane fields, the number of anti-efficacy in 91.7-99.4%; fresh weight control effect was 93.0% -99.8%. The effects of pre-emergence spraying on gramineous weeds were significantly better than those of stem and leaf at seedling stage, and the effects of controlling barnyardgrass and cadmium were increased by 16% and 38.7% respectively. However, the control effect on other weeds was not obvious. Seedling application, A net net and diuron mixed with barnyard grass control effect was significantly higher than the two single-dose control effect, the effect of gold is also better than two low concentration of the single effect. Mixing or sowing before spraying can improve the safety of sugarcane.