特丁净·氟噻草胺对麦田禾本科杂草室内活性及安全性

Influence of Terbutryn and Flufenacet on Indoor Activity and Safety of Grassy Weeds in Wheat Fields

采用土壤封闭试验评价特丁净与氟噻草胺不同比例复配对于小麦田禾本科杂草的杀草活性及对小麦的安全性。结果表明:当50%特丁净SC与41%氟噻草胺按照6∶1复配,施用剂量为2800 g a.i./hm^(2)时对于多花黑麦草、看麦娘和早熟禾抑制效果达到100%,对于菵草抑制率可达99.01%,对于节节麦抑制率也高达87.11%,且对小麦幼苗生长无明显影响。特丁净与氟噻草胺复配在扩大杀草谱的同时增强了对小麦田抗药性节节麦的防治效果,且降低了化学药剂的田间使用量,对小麦安全,可作为麦田除草剂的优良选择。

Soil sealing tests were conducted to evaluate the herbicidal activity of terbutryn and flufenacet with different proportions for grassy weeds in wheat fields and their ability to ensure wheat safety.The results show that when 50%terbutryn SC and 41%flufenacet are mixed in a ratio of 6∶1,which is then applied at a dosage of 2800 g a.i./hm^(2),it achieves a 100%inhibition effect on Annual ryegrass,Shortawn foxtail,and Annual bluegrass,with an inhibition rate of 99.01%for Beckmannia syzigachne and an inhibition rate of 87.11%for Aegilops tauschii Coss.In addition,it shows no significant impact on the growth of wheat seedlings.The combination of terbutryn and flufenacet not only broadens the spectrum of weed control but also enhances the control of Aegilops tauschii Coss.with resistance to drugs in wheat fields.It reduces the amount of chemical agents used in the field and is an excellent wheat herbicide for ensuring wheat safety.