紫茎泽兰化学防除效果的药剂筛选试验

为筛选出对紫茎泽兰防除效果较好的药剂,采用7种药剂对紫茎泽兰进行了药剂防除试验.结果表明:10%甲磺隆和200g/L使它隆有效成分剂量为44.2g/hm2和211.5g/hm2时,第2次药后35d对紫茎泽兰的鲜重防效分别为80.9%和81.0%.10%甲磺隆和200g/L使它隆对紫茎泽兰的防除效果较好,由于10%甲磺隆对后茬作物均有影响,只能在荒坡、山上、公路边、多树山林使用,建议生产上使用使它隆较好.

Screening Test Study of Chemical Control Effect on Eupatorium adenophorum

7 kinds of herbicides with different concentration were used to test the control effect in Eupatorium adenophorum to screen the best reagent in this study. The results showed that there was best effect when the active ingredient of 10% metsulfuron-methyl and 200 g/L starane (fluroxypyr) were 44.2 g/hm~2 and 211.5 g/hm~2 respectively. The fresh weight control effects were 80.9% and 81.0%, respectively, after 35 days of the 2 nd spray. Since metsulfuron-methyl had negative effect on succession crops, it was suggested that starane (fluroxypyr) could be favorable in crop production, 10% metsulfuronmethyl could be used in wasteland, mountains, roadside, and forestland.