在甘蔗植后18周或宿根蔗封行后定出防除杂草的计划。新植蔗田整地时应避免植沟有大土块,以免影响药效。植后4天用芽前除草剂,在2—4周内用芽后除草剂。生长4到5周的甘蔗对除草剂是感染的。此时如需要补植应用小泥铲以减少破坏土表,经过芽前除草剂处理的第二次除 Plan for weed control after 18 weeks of sugarcane planting or pest-sealing. New planting sugarcane soil preparation should avoid planting a large clods, so as not to affect the efficacy. 4 days after planting with pre-emergence herbicide, 2-4 weeks after use of post-emergence herbicide. Sugarcane, which is grown for 4 to 5 weeks, is infested with the herbicide. At this point, if the need for replanting small trowel to reduce the destruction of soil surface, after the pre-emergence herbicide treatment of the second addition