草必净防除马铃薯田杂草试验研究  

The Study of Pesticide Effect Trial on Controlling of the Weeds in Potato Fields with Prometryn,Acetochlor

作　　者：郭丽丽[1] 姚满生[1] 

机构地区：[1]山西农业大学,山西太谷030801

出　　处：《现代农业科学》2008年第10期85-86,共2页

基　　金：山西省科技攻关计划(2007031041)

摘　　要：试验结果表明,草必净防除马铃薯田杂草,在用药量170～260 mL/667 m2范围内,对马铃薯的生长发育没有影响,可有效地防除反枝苋、马齿苋、无芒稗、曼陀罗、藜等杂草。施药后30 d,总株防效为87.51%～97.11%;施药后45 d,总株防效为90.60%～98.26%,总鲜重防效为89.31%～97.74%。草必净在马铃薯田防除杂草最佳用药量为200 m/667 m2。The result for trial proves that 40% prometryn aeetoehlor EC prevents and gets rid of the weeds in potato fields. Within the Scope of using pesticide 170 -260 ml/667m^2 , it affects a little for the growth of the potatoes and it can prevent and get rid of the annual weeds like Amaranthus retroflexus, Portulaca oleracea, Echinochloa crusgalli, Dature Stramonium Datura , Chenopdium album and so on. In 30 days after using herbicide, the preventing effect is 87.5 1% - 97.11% for each plant. In 45 days after using pesticide, the preventing effect is 90.60% -98.26% for each plant. The effect of total fresh weight is 89.31% - 97.74%.

关 键 词：马铃薯 杂草 草必净 

分 类 号：S632.53[农业科学—蔬菜学]