摘要
为了明确几种除草剂对红麻的安全性以及对红麻田杂草的防除效果,进行了红麻田播后苗前除草试验。结果表明:药后14 d对红麻田杂草综合防效从高到低为:48%甲草胺乳油、50%扑草净可湿性粉剂、72%异丙甲草胺乳油、48%氟乐灵乳油、70%嗪草酮可湿性粉剂,防效分别达到90.7%、87.2%、86.5%、78.6%、74.1%;药后28 d对杂草的防效均出现轻微下降,但下降趋势基本一致。在保证对红麻安全且防效显著的前提下,48%甲草胺乳油和72%异丙甲草胺乳油均可做为红麻田良好的除草剂进行推广。
Pre-emergence weed control test was applied in ambary field to test safety and weed control effect of several herbicides.The results showed that weed control effect in 14 days from high to low were 48% alachlor EC,50% prometryn WP,72% metolachlor EC,48% trifluralin EC,70% metribuzin WP,which were 90.7%,87.2%,86.5%,78.6%,74.1% respectively;Weed control effect in 28 days all decreased in a consistent trend.It showed that on the premise of safety to hemp and good weed control effect,48% alachlor EC and 72% metolachlor EC could be used as pre-emergence herbicides in ambary field for extension.
出处
《现代农业科技》
2010年第20期183-183,186,共2页
Modern Agricultural Science and Technology
基金
国家现代麻类产业体系专项(nycytx-19-E09)
关键词
红麻
除草剂
安全性
防效
ambary
herbicides
safety
control effect
