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通过50 g/L炔草酸·唑啉草酯乳油在奇台县防除小麦田杂草药效评价,结果表明,50g/L炔草酸·唑啉草酯乳油是一个防效优异的麦田化学除草剂。药后30 d对麦田恶性杂草野燕麦株防效达98.68%以上,鲜重防效达94.58%以上;对狗尾草株防效达88.6%以上。通过对田间阔叶杂草的效果观察,50g/L炔草酸·唑啉草酯乳油对阔叶杂草灰藜和卷茎蓼有明显的抑制生长作用,对小麦生长的竞争力弱;由低剂量至高剂量处理对灰黎的株防效达41.19%～69.41%。虽然该药剂对卷茎蓼有一定的抑制作用,但株防效不显著。综上所述,在小麦田禾本科杂草2～5叶期、阔叶杂草2～4叶期,用50g/L炔草酸·唑啉草酯乳油30～60g/hm~2(有效成分),对水450 L喷施,对小麦田杂草高效,对小麦安全。
Efficacy of 50 g / L cloxazolafos in the control of weeds in wheat field in Qitai County was evaluated. The results showed that 50 g / L of cloxazolam and oxacillin EC was a wheat field chemical herbicide . After 30 days of treatment, the control effect on wild weed wild oats was over 98.68% and the fresh weight control efficiency was over 94.58%. The control effect on giant sauriosperm was over 88.6%. Through observing the effect of broad-leaved weeds in the field, 50g / L aceclizinic acid and pyraclostrobin EC showed obvious inhibitory effect on broadleaf weeds, Chenopodium glaucum and Polygonum convolvulus, and weak competition for the growth of wheat. The dose-to-high dose treatment against Ashley strain control efficiency of 41.19% to 69.41%. Although this medicine has a certain inhibitory effect on Polygonum convolvulus, its efficacy is not significant. In summary, wheatgrass weeds 2 ~ 5 leaf stage, broad-leaved weeds 2 to 4 leaf stage, with 50g / Loprithina oxacillin grass EC 30 ~ 60g / hm ~ 2 (active ingredient ), Sprayed with 450 L of water, weed-efficient wheat fields, wheat safety.