几种除草剂对苎麻田杂草的防效

为了明确几种除草剂对苎麻田杂草的防除效果,进行了苎麻田除草试验。结果表明:施药后14 d对苎麻田杂草的综合株防效从高到低分别为:24%乙氧氟草醚乳油、90%乙草胺乳油、10%精喹禾灵乳油、10.8%高效盖草能乳油,防效分别为89.3%、88.5%、83.2%、82.9%;在施药后28 d,对杂草的株防效均出现一定程度下降。而对苎麻田杂草的鲜重防效从高到低分别为90%乙草胺乳油、24%乙氧氟草醚乳油、10.8%高效盖草能乳油、10%精喹禾灵乳油,其中90%乙草胺乳油和24%乙氧氟草醚乳油对杂草的鲜重防效分别达到87.1%和86.8%,显著高于10.8%高效盖草能乳油和10%精喹禾灵乳油。

Weed Control Effect of Several Herbicides in Ramie Field

In order to definitude weed control effect of several herbicides,weed control test was applied in ramie field.The results showed that control effect on plant in 14 days from high to low were 24% oxyfluorfen EC,90% acetochlor EC,10% quizalofop-p-ethyl EC,10.8% haloxyfop-r-methyl EC,which were respectively 89.3%,88.5%,84.8%,83.2%;Weed control effect on plant all decreased in 28 days;Control effect on fresh weight from high to low were 90% acetochlor EC,24% oxyfluorfen EC,10.8% haloxyfop-r-methyl EC,10% quizal...