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urea herbicide
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urea herbicide
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农学
脲类除草剂
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urea herbicide
脲类除草剂
一类光合作用光系统PS Ⅱ电子传递抑制剂或细胞分裂抑制剂。结构式中R1一般为取代苯环或五六元杂环及稠合环,脂肪链组成的桥连环也可以,但以取代苯环居多;R2大多为氢;R3一般为短链的脂肪烷烃;R4一般为氢、短链的脂肪烃或烷氧基。
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