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采用田间试验方法研究了30%苄嘧.苯磺隆WP对春小麦田杂草的控制效果和应用安全性。结果表明,30%苄嘧.苯磺隆对田间阔叶杂草具有较好的防除效果,于春小麦3～5叶期每公顷施用30%苄嘧.苯磺隆WP 281.25～337.50 g/hm2对水300 kg茎叶喷雾,可有效防除密花香薷(Elsholtzia densa)、遏蓝菜(Thlaspi arvnse)、藜(Chenopodium album)、苦苣菜(Sonchus oleraceus)等阔叶杂草;在以大刺儿菜(Cephalanoplos setosum)、泽漆(Euphorbia helioscopia)为优势种群的春麦田需增大剂量至337.50 g/hm2。对供试的乐麦5号和高原483春小麦安全,除草后小麦增产12.02%～17.38%,增产效果总体优于对照药剂。
A field experiment was conducted to study the control effect and safety of 30% bensulfuron-methyl-tribenuron-methyl WP against weeds in spring wheat field. The results showed that 30% bensulfuron-methylbenzone had good control effect on broadleaf weeds in the field. In the third to the fifth leaf stage of spring wheat, 30% benthrimycin and tribenuron-methyl WP 281.25 ~ 337.50 g / hm2 Water 300 kg stems and leaves spray, which can effectively control the broadleaf weeds such as Elsholtzia densa, Thlaspi arvnse, Chenopodium album, Sonchus oleraceus; Cephalanoplos setosum and Euphorbia helioscopia were the dominant populations in spring wheat fields with an increased dose of 337.50 g / hm2. The test of Le Mai 5 and plateau 483 spring wheat safety, weeding wheat yield 12.02% ~ 17.38%, the overall yield superior to the control agent.