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小麦是项城市重要的粮食作物之一,常年种植面积为6.67万hm2左右。苯磺隆是项城市麦田除草的主要当家品种,在项城市应用已有20年左右的历史。为摸清苯磺隆在项城市的用药历史、杂草抗性、发生发展情况及当前杂草防治中面临的问题,笔者对项城市苯磺隆用药历史和抗性进行了调研,现将调研结果报告如下。一、苯磺隆杂草抗性的发生发展情况随着应用年份的增加,杂草对苯
Wheat is one of the important food crops in the city, with perennial planting area of 66,700 hm2. Tribenuron is the city’s main wheat weeding species, in the application of the city has been about 20 years of history. In order to discover the medicinal history, weed resistance, occurrence and development of tribenuron in the Xiangcheng city and the problems we are facing in weed control, the author conducted a survey on the history and resistance of tribenuron-methyl in Xiangcheng, The results are reported below. First, the occurrence and development of tribenuron-methyl weed resistance With the increase of the application year, weeds of benzene