3种除草剂和除草膜及其组合对烟田杂草的防除效果  

Effectiveness of Three Herbicides and Herbicide Film Combinations for Weed Control in Tobacco Fields

作　　者：孔菲 龙春丽 张得平 邓明军 王艳[2] KONG Fei;LONG Chunli;ZHANG Deping;DENG Mingjun;WANG Yan(China National Tobacco Corporation(CNTC)Guangxi Zhuang Autonomous Region(GZAR),Nanning 530022,China;College of Life Sciences,Guizhou University,Guiyang 550025,China)

机构地区：[1]中国烟草总公司广西壮族自治区公司烟叶处,广西南宁530022 [2]贵州大学生命科学学院,贵州贵阳550025

出　　处：《贵州大学学报（自然科学版）》2024年第1期43-47,共5页Journal of Guizhou University:Natural Sciences

基　　金：中国烟草总公司广西壮族自治区公司科技项目(202145000024006)。

摘　　要：为了筛选高效安全的烟田除草方式,在广西烟区开展3种除草剂和除草膜及其组合对烟田杂草防除效果试验。结果表明,除草剂50%敌草胺可湿性粉剂对杂草株数总防效较好,施药后30 d和45 d防效分别为59.3%、89.94%;异丙甲草胺乳油对杂草鲜重总防效最好,施药后45 d,防效为89.47%;盖黑膜对杂草的鲜重和株数防效均显著高于白色膜与双色膜,白色膜与双色膜无显著差异,防效均不佳,仅为30%左右。盖黑膜的处理组烟叶长势差且出现明显的灼伤现象,黑膜不适用于广西烟区;除草剂结合地膜组合处理组中,50%敌草胺可湿性粉剂+双色地膜的防效最高,药后45 d杂草鲜重总防效为83%、株数总防效为83.26%。综合对烟田杂草防除效果和对烟草的生长影响情况,建议在广西烟区推广除草剂50%敌草胺可湿性粉剂和物理防控双色地膜结合使用。In order to screen efficient and safe weed control methods in tobacco fields,three kinds of herbicides and herbicide film combinations were tested for weed control effects in tobacco fields in Guangxi tobacco area.The results show that the 50%trichlorfon wettable powder has better total preventive effect on the number of weed plants,and the preventive effect is 59.3%and 89.94%at 30 d and 45 d after application,respectively;Isopropyl metolachlor emulsifiable concentrate has the best total preventive effect on the fresh weight of weeds,and the preventive effect is 89.47%at 45 d after application;The preventive effect of black film on the fresh weight and the number of plants of weeds is significantly higher than that of white film and bicolour film,but there is no significant difference between white film and bicolour film,and their preventive effects are not good,which are only about 30%.In the treatment group covered with black film,the growth of tobacco leaves is poor and there is an obvious burning phenomenon,so the black film is not suitable for Guangxi tobacco area.In the treatment group combined with herbicide and film,the preventive effect of the 50%diquat wettable powder+two-colour film is the highest;the total preventive effect on weed fresh weight is 83%,and the total preventive effect on the number of plants is 83.26%in the 45 d period after the drug is administered.

关 键 词：广西烟田 杂草 除草剂 地膜:防效 

分 类 号：Q945[生物学—植物学]