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为探讨烯草酮EC对禾本科杂草的防治效果,以洋葱品种红一号为试材,研究了240g·L~(-1)烯草酮EC加入3种专用助剂不同处理对禾本科杂草的防效。结果表明:240g·L~(-1)烯草酮EC180、240、300、600mL·hm-2+0.125%Amigo专用助剂各处理,对洋葱田禾本科杂草防效达89.7%~100%,240g·L~(-1)烯草酮EC16mL·hm-2+0.2%TM-4专用助剂处理,对洋葱田禾本科杂草防效达87.0%~99.5%,240g·L~(-1)烯草酮EC240mL·hm-2+0.05%力透专用助剂对禾本科杂草的株数没有防效,鲜重防效只有72.5%和78.7%。各处理均有一定的增产效果。推荐使用的最佳应用剂量范围为240g·L~(-1)烯草酮EC240~300mL·hm-2+0.125%Amigo专用助剂和240g·L~(-1)烯草酮EC240mL·hm-2+0.2%TM-4专用助剂。施药适期为移栽后洋葱苗4~5叶;稗草、野黍等禾本科杂草3~5叶期,施药方法为洋葱苗后茎叶喷雾。
In order to explore the effect of clethodim EC on weeds in weeds, the onion variety Red No.1 was used to study the effects of different treatments of 240g · L ~ (-1) Weed control effect. The results showed that 240g · L -1 clethrene EC180,240,300,600mL · hm-2 + 0.125% Amigo special adjuvant treatment, to onion grass weeds control effect of 89.7% to 100% , 240g · L ~ (-1) clethodim EC16mL · hm-2 + 0.2% TM-4 special auxiliaries, the control effect on grass weeds in onion fields was 87.0% -99.5%, 240g · L ~ (- 1) Clethodim EC240mL · hm-2 + 0.05% The strength of the special additives on the number of grass weeds no control effect, the fresh weight control effect is only 72.5% and 78.7%. Each treatment has a certain yield increase effect. The optimal dosage range of 240g · L ~ 1 for clethodim EC240 ~ 300mL · hm-2 + 0.125% Amigo special additive and 240g · L ~ (-1) clethodim EC240mL · hm- 2 + 0.2% TM-4 special additives. Spraying appropriate period after transplanting 4 to 5 leaves of onion seedlings; barnyardgrass, wild millet and other grass weeds 3 to 5 leaf stage, spraying method for spraying the stems and leaves of onion seedlings.