卷茎蓼(polygonum convolvulus L.)俗称荞麦蔓,蓼科,蓼属,一年生草本,茎缠绕,由过去麦田的次要杂草,现已在大部分地区上升为主要恶性杂草,而且发生面积逐年增加,主要分布在春麦田。此杂草生长迅速,在小麦的灌浆期株高超过小麦,与小麦争光、争水份,对小麦的危害很大,用常规农药2.4—D 丁酯连续喷3—4次,也达不到理想的防除效果,甚至还使小麦造成药害。目前卷茎蓼已成为我县春麦稳产高产的主要障碍,为此,我站于1991年开展了卷茎蓼防除技术的探讨。现将结果报道如下。一、试验与方法 Polygonum convolvulus L. commonly known as buckwheat vine, Polygonaceae, Polygonum, annual herb, stem winding, the secondary wheat weeds in the past, has now risen in most areas as the main malignant weeds, and the occurrence of area Increasing year by year, mainly in spring wheat fields. This weed grows rapidly. During the filling stage of wheat, the height of the weed exceeds that of wheat, it wins glory with wheat and competes with water. It is harmful to wheat. It can not be achieved by spraying 3-4 times with conventional pesticide 2.4-D butyl ester The ideal effect of control and even wheat injury caused. At present, Polygonum convolvulus has become a major obstacle to the stable and high yield of spring wheat in our county. Therefore, I conducted a study on the prevention and control of Polygonum viviparum in 1991. The results are reported below. First, the test and method