WANG Yu,GUO Yulian,LUO Chan,et al.Efficacy of Post-Emergence Herbicides on Portulaca oleracea[J].HEILONGJIANG AGRICULTURAL SCIENCES,2024,(09):47-51.[doi:10.11942/j.issn1002-2767.2024.09.0047]
茎叶处理除草剂对马齿苋的防除效果评价
- Title:
- Efficacy of Post-Emergence Herbicides on Portulaca oleracea
- 文章编号:
- 7
- Keywords:
- Portulaca oleracea; herbicides; control effects
- 文献标志码:
- A
- 摘要:
- 为了筛选对马齿苋防除效果好的除草剂，采用盆栽试验比较分析10种茎叶处理除草剂对马齿苋的防效。结果表明，在试验所设剂量，20%氯氟吡氧乙酸乳油、25%氟磺胺草醚水剂对2叶期－4叶期和6叶期－8叶期马齿苋防效可达100%。38%莠去津悬浮剂、480 g·L-1麦草畏水剂和480 g·L-1灭草松水剂对2叶期－4叶期马齿苋防效达100%，对6叶期－8叶期马齿苋有很好的抑制作用，鲜重防效好。30%苯唑草酮悬浮剂对2叶期－4叶期马齿苋鲜重防效为90.7%，但不能有效防除6叶期－8叶期马齿苋。40 g·L-1烟嘧磺隆可分散油悬浮剂、10%硝磺草酮可分散油悬浮剂、25%辛酰溴苯腈乳油和84%氯酯磺草胺水分散粒剂不能有效防除马齿苋。
- Abstract:
- In order to screen the suitable herbicides for control Portulaca oleracea, the efficacy of 10 post-emergenceherbicides were compared by pot experiment. The results showed that, the control effects of 20% fluroxypyr EC and 25% fomesafen AS on P. oleracea at 2 leaves－4 leaves and 6 leaves－8 leaves were 100%. 38% atrazineSC, 480 g·L-1dicamba AS and 480 g·L-1bentazone AS had 100% control effects on P. oleracea at 2 leaves－4 leaves and good control effects on fresh weight of P. oleracea at 6 leaves－8 leaves. The control effect of 30% topramezone SC on fresh weight of P. oleracea at 2 leaves－4 leaves was 90.7%, but it could not effectively control weed at 6 leaves－8 leaves. 40 g·L-1nicosulfuron OD, 10% mesotrione OD, 25% bromoxyniloctanoate EC and 84% cloransulam-methyl WG could not effectively control P. oleracea.
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备注/Memo
收稿日期：2024-05-13