长期来推广单一除稗为主的除草剂如禾大壮、杀草丹、丁草胺等,虽然危害水稻的稗草基本被控制,但是,近几年阔叶杂草和莎草科杂草如瓜皮草、鸭舌草、异型莎草等相应增多,使稻田杂草群落结构发生了明显的变化。为寻求使用一次除草能控制稻田一季草害的新除草剂。因此对“稻草畏”进行了试验研究。在试验研究成功的基础上,于1993年在连作晚稻田的除草中推广了2.23万亩,取得了理想的除草效果和增产效益。一、稻草畏除草剂的特点经验表明,“稻草畏”具有对水稻安全、杀草谱广、低毒高效、持效期长、适用广泛、成本低廉、使用简便,增 Long-term promotion of a single addition of barnyard grass-based herbicides such as Wo Dazhuang, herbicide Dan, butachlor, etc., although the barnyard grass damage to rice is basically controlled, but in recent years, broad-leaved weeds and sedge weeds Such as melon, Monochoria, Shaped algae increased accordingly, the weed community structure has undergone significant changes. In order to find a new herbicide that can control weeds in the first season of rice paddies by using one weed. Therefore, “straw” was tested. On the basis of the successful experimental research, in 1993, 22,300 mu was popularized in weeding continuous cropping in late rice fields, and the ideal herbicidal effect and yield increase were achieved. First, the characteristics of straw herbicides Experience shows that “straw” has the safety of rice, herbicides broad spectrum, low toxicity and high efficiency, long duration, wide range of applications, low cost, easy to use, increase