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陕西省农田常见杂草有300多种,其中麦田有100余种,危害较为严重的有20余种,达到中等危害的面积在1800万亩以上,占种植面积的70％以上。关中平原麦田以播娘蒿、离蕊芥、荠菜、麦仁珠、麦家公、麦兰菜为多,危害较重;有的麦田野燕麦危害严重,低湿地有繁缕和看麦娘危害。陕南麦田繁缕、牛繁缕、猪殃殃、看麦娘、野莞豆等危害较重。陕北麦田刺儿菜、田旋花、离子草危害较重,部分麦田有野燕麦危害。从1975年开始我们采用燕麦敌2号、燕麦灵等化学除草剂防除野燕麦,同时开展用2甲4
There are over 300 kinds of common weeds in farmland in Shaanxi Province, of which there are more than 100 kinds of wheat fields, more than 20 kinds of harms are more serious, more than 18 million mu are moderately harmed, accounting for more than 70% of the cultivated area. Guanzhong plain wheat field to sowing Artemisia annua, Ruibai, shepherd’s purse, wheat kernels, wheat family, mallard for more, more serious; some wild oat serious damage to wheat, low wetlands have a plume and look Maiden damage . Southern Shaanxi wheat plumbum, Niu Fan Tsui, pig apologize, see Maiang, wild bean and other serious harm. Northern Shaanxi Corylus, Potentilla, Ionophyllum heavier harm, some of the wheat fields have the dangers of wild oats. Since 1975, we use oat enemy No. 2, oatmeal and other chemical herbicides to prevent wild oats, while carrying out with 2 A 4