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      滅多威硫雙威農(nóng)藥知識(shí):異丙隆和乙草胺能不能混用
      date:2020/9/15   
          乙草胺和異丙隆均適用于小麥田和大麥田播后苗前或3葉期前后土壤封閉處理,兩者對(duì)處于幼苗期的雜草也有一定防效,其中異丙隆對(duì)較大齡的雜草防效也較好。兩者可以混配使用,目前國(guó)內(nèi)就有異丙隆與乙草胺的混配劑登記用于小麥田除草;煊煤髿⒉葑V擴(kuò)大,各自用量相對(duì)較低有利于減輕藥害。除草效果主要取決于土壤墑情、草齡和草相,宜在雜草種子還沒(méi)有萌發(fā)或萌發(fā)早期用藥,施藥時(shí)土壤濕度適宜有利于提高防效,土壤干旱時(shí)除草效果較差,土壤過(guò)濕時(shí)麥苗易受乙草胺藥害。


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