30％氯氟·烟·莠可分散油悬浮剂对玉米田恶性杂草防效及安全性研究

Studies on the Effect and Safety of Controlling Malignant Weed in Spring Corn Field with 30% Mixture of Atrazine,Nicosulfuron and Fluroxypyr

30%氯氟吡氧乙酸.烟嘧磺隆.莠去津可分散油悬浮剂是由烟嘧磺隆、莠去津、氯氟吡氧乙酸复配的玉米除草剂。药效试验结果表明,在玉米3～6叶期喷雾,剂量为382.5～450 g.ai/hm2时,药后45 d对杂草防效达到93.5%～97.3%,特别是对玉米恶性杂草具有理想的防效,对玉米生长安全性好,与人工除草相比,增产明显。

The suspending herbicide agent composed of 30% fluroxypyr, Nicosulfuron and atrazine was applied in corn field. Results of efficacy test showed that the effect of control the weed was 93.5 - 97.3% under 382.5 - 450g.ai/hm2 applied at 3 - 6 leaf stage. The effect of controlling malignant weeds was satisfied. It is safety to corn, and corn yield was increased significantly than manual controlling of weeds.