芝麻是我省重要的油料作物,常年单产较低,主要原因是芝麻播种至苗期气候温暖湿润,杂草大量萌发,同时又是抢种抢收的农忙季节,芝麻田间管理难以兼顾,常使芝麻地杂草丛生,芝麻全苗困难,因此造成减产。为改变芝麻生产的落后状况,1988～1990年我们在襄阳县伙牌镇进行了芝麻地化学除草技术的试验研究,取得了初步效果。 一、杂草种类调查 Sesame is an important oil crops in our province, perennial low yields, the main reason is sesame sowing to the seedling climate is warm and humid, a large number of germination of weeds, but also rush to seize and grab the busy season, sesame field management difficult to take into account, often Sesame Overgrown, sesame seedlings difficult, resulting in reduced production. In order to change the backwardness of sesame production, from 1988 to 1990, we carried out the experimental research on the chemical weed control technology of sesame in Weitai Town, Xiangyang County, and achieved initial results. First, weeds species survey