四川省攀西烟田杂草种类、危害及出苗规律  

Study on Species, Damage and Emergence Characteristics of Weeds in Tobacco Fields in Panxi of Sichuan Province

作　　者：朱建义[1] 李斌[2] 曾庆宾[3] 张瑞平[3] 曾宗良 王勇[5] 周小刚[1] 

机构地区：[1]四川省农业科学院植物保护研究所农业部西南作物有害生物综合治理重点实验室,成都610066 [2]四川省烟草专卖局(公司),成都610041 [3]四川省烟草公司攀枝花市公司,四川攀枝花617026 [4]四川省烟草公司攀枝花市公司米易县分公司,四川米易617200 [5]四川省烟草公司凉山州公司,四川西昌615000

出　　处：《中国烟草科学》2015年第4期91-95,共5页Chinese Tobacco Science

基　　金：四川省烟草公司科技项目"四川烟田杂草的调查;演替规律及综合治理研究"(201302004)

摘　　要：采用倒置“W”9 点取样法和七级目测法,调查了攀西烟田杂草发生的种类和危害状况;同时采用田间定点调查法研究了烟田杂草的出苗规律.结果表明,攀西烟田杂草共有30 科75 属115 种,根据相对多度和综合危害指数,最主要的杂草有尼泊尔蓼、马唐、酸模叶蓼、辣子草、光头稗、藜等;烟田杂草有2 个出苗高峰,一个在烟草移栽后20～30 d,另一个在烟草揭膜培土后1～10 d,其中以第1 个出苗高峰为主.Species and damage status of weeds in tobacco fields in Panxi of Sichuan Province were investigated using inverted 'W' 9-point sampling method and seven visual method in 2013 and 2014. Emergence characteristics of weeds were surveyed by field tenpoint investigation. The results showed that there were 115 weed species in 75 genera belonging to 30 families. According to relative abundance and comprehensive weed damage index, the major noxious weed species included Polygonum nepalense Meisn., Digitaria sanguinalis(L.) Scop., Polygonum lapathifolium L., Galinsoga parviflora Cav., Echinochloa colonum(L.) Link、Chenopodium album L. and so on. There were two peaks of weed emergence in tobacco fields. One was in 20-30 days after tobacco transplanting, which is the major emergence peak. And the other weed emergence peak was in 1-10 days after film uncovering and hilling.

关 键 词：攀西 烟田 杂草 种类 危害 出苗 

分 类 号：S451[农业科学—植物保护]