【摘要】 咪草烟系咪唑啉酮类豆田除草剂，在室内、温室和田问进行了咪草烟活性、安全性和施药条件的试验。在５０～１００克有效成分／公顷剂量下可有效防除禾本科杂草和阔叶杂草（除铁苋菜和鬼针草）。在温室内５０～２００克有效成分／公顷对大豆安全，但在大豆三片出复叶期后施用易产生药害。咪草烟在土壤中残留时间长，对后茬敏感作物易产生药害，其安全间隔期有待进一步研究。更多还原

【Abstract】 Micaoyan is a imidaxolione family herbicidein soybean field.The studies were conducted to deter-mine micaoyan activity to weeds,phytotoxic effect tosoybean and factors affecting efficacy and phytotoxicityin laboratory,greenhouses and field plots,When spray-ing at ea rly post-emergence it is very effective to con-trol grasses and broad leaf weeds but Acalypha aus-tralis L. and Bidens sp. at rate of 50～100g a.i/ ha.Soybean was not damaged at rate of 50-200ga.i. /ha ingreenhouse but phytotoxicity was observed whenspraying was carried out after 3rd trifoliolate leafstage;Residual of micaoyan in soil may cause damageto sensitive following crops.It is a new topic for fur-ther study that how long is the safe in terval to fowl-long crop.更多还原