摘要
20 0 0年 5月至 2 0 0 0年 9月在果洛州草籽场垂穗披碱草 (ElymusnutansG)良种田中应用 2 ,4-D丁脂、甲磺隆两种除草剂进行了小区试验 ,结果表明 ,6月中旬至 7月中旬 ,2 ,4-D丁脂、甲磺隆分别用1 0 5 0ml/hm2 ～ 1 35 0ml/hm2 、1 0 5g/hm2 ～ 1 35g/hm2 的剂量 ,灭杂效果显著。与此同时在当年 7月 1 7日～ 30日应用同剂量的甲磺隆在垂穗披碱草良种田中灭杂 340hm2 。
An experiment applies two kinds of weedicide, 2,4-Dbutylate and metsulfuron-methyl, was conducted to study the weeding effects in the fine seeds of Elymus nutans in Guoluo from May until September, 2000. The results showed that there are remarkable weeding effect with dosage of 1050ml/hm 2～1350ml/hm 2 for 2,4-Dbutylate and of 105g/hm 2～135g/hm 2 for metsulfuron-methyl respectively from middle of Jun to middle of July. According to this result, We conducted to a weeding experiment applies of Elymus nutans from 17 July to 30 July, 2000. The weeding effect is marked. The area of fine seeds field is 340hm 2.
出处
《青海草业》
2001年第3期14-17,共4页
Qinghai Prataculture
关键词
2
4-D丁脂
甲磺隆
良种田
灭杂
Dbutylate
Metsulfuron-Methyl
Fine seeds fields weeding
