【摘要】 为了筛选适宜燕麦（Avena sativa）田使用的安全、高效的混配除草剂组合,选用96%精异丙甲草胺乳油和10%苄嘧磺隆可湿性粉剂、57%2,4-D丁酯乳油和10%乙羧氟草醚乳油按照不同比例两两组合,混配后施于燕麦田,研究其对燕麦田杂草的防除效果以及对燕麦安全性和产量的影响。结果表明,不同除草剂处理对杂草的防效差异显著（P <0.05）,混配处理的防效普遍高于各单剂处理。T5和T9对杂草的防效最好,但后者对燕麦有药害。综合安全性、除草效果及对燕麦的增产作用,筛选出综合效应最佳的混配组合,即57%2,4-D丁酯乳油438.5 mL·hm^–2+10%乙羧氟草醚乳油300 mL·hm^–2（T12）;其药后30 d的鲜重防效达87.99%,燕麦干草产量为9 875.3 kg·hm^–2,燕麦种子产量为4 314.3 kg·hm^–2。更多还原

【Abstract】 In order to select suitable combinations of herbicides for oat fields,96% S-metolachlor in combination with 10%bensulfuron methyl and 57% 2,4-D butyl ester with 10% fluoroglycofen were evaluated in different ratios and concentrations for their weed control efficacy,oat yield,and safety.The results showed that there were significant differences among the treatments（P < 0.05）.The average control effect of mixed herbicides was higher than that of the single agents: T5 and T9 had the highest weed control efficacy,but the latter injured oat plants.For a safe combination,weed control efficacy,and oat yield improvement,the best combination was 57% 2,4-D butyl ester(438.5 mL·ha^–1) and 10% fluoroglycofen(300 mL·ha^–1)（T12）,which resulted in 87.99% weed control efficacy,9 875.3 kg·ha^–1 oat hay yield,and 4 314.3 kg·ha^–1 grain yield.更多还原