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调查表明,山西麦田杂草种类约75种,隶属于25科。以播娘蒿、荠菜、马齿苋、田旋花、藜和节节麦等为优势种群。出现频率最高的是播娘蒿,为61.2%,其次是荠菜,为52.6%。不同农田生态区域、同一区域春麦区与冬麦区、旱作地与水浇地麦田之间,杂草群落结构存在差异。部分麦田杂草呈现节节麦和雀麦等禾本科恶性杂草比重上升、传播蔓延加快的态势。采取以化学防除为主、农业措施为辅的综合防除技术,可有效控制麦田草害发生与危害。
Survey shows that Shanxi wheat field weed species about 75, belonging to 25 families. Artemisia annua, shepherd’s purse, purslane, spinosad, quinoa and Festival of wheat and other dominant populations. The highest frequency is sowing Artemisia annua, 61.2%, followed by shepherd’s purse, was 52.6%. The structure of weed community differed among different farmland ecological regions, the same region of spring wheat and winter wheat, dry land and irrigated land of wheat. Some weeds in wheat fields showed the proportion of weeds and grasses such as burdock weeds increased, spreading and accelerating trend. Take chemical control as the main, agricultural measures, supplemented by a comprehensive anti-technology, can effectively control the occurrence and harm of wheat grass damage.