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从美国农业部(USDA)最新发表的数据得知,2011年美国约有80%以上的高粱和大麦作物使用过除草剂。在被调查的6个州中约有86%的高粱面积和在被调查的13个州中约有83%的大麦面积使用过除草剂。按被处理的面积计,高粱上使用最广泛的除草剂是atrazine(莠去津,64%),其应用总量为420万磅(1905吨),其次是glyphosate(草甘膦异丙胺盐),其应用量为300万磅,应用面积占作物总面积的47%,第3是Smeto-lachlo(r精异丙甲草胺),应用面积占作
According to the latest data released by the U.S. Department of Agriculture (USDA), about 80% of the sorghum and barley crops in the United States used herbicides in 2011. Approximately 86% of the sorghum area in the six states investigated and about 83% of the barley area in the 13 states surveyed used herbicides. The most widely used herbicide on sorghum, based on area being treated, is atrazine (atrazine 64%) for a total of 4.2 million pounds (1905 tons) followed by glyphosate (glyphosate) With an application volume of 3 million pounds, an area of application accounting for 47% of the total crop area, a third with Smeto-lachlo (r)