期刊论文

中文

植物保护

0529-1542

2022

48

4

336-340

10.16688/j.zwbh.2021359

HN2020KJ04:湖南省烟草公司科技计划 2020JJ5237:湖南省自然科学基金 20A253:湖南省教育厅重点项目

本校为第一机构

为了明确湖南省烟田杂草种群与分布,采用对角线五点取样法在全省烟田进行了系统调查。结果表明,烟田杂草共有30科77种,其中禾本科杂草占比14.29%,阔叶杂草占比81.82%,莎草科杂草占比3.89%;一年生杂草占比75.32%,多年生杂草占比24.68%。相对多度大于3%的杂草有铁苋菜、酸模叶蓼、稗、碎米荠、马唐、繁缕、喜旱莲子草、看麦娘、通泉草、鸭跖草、水苦荬等11种,其中铁苋菜、酸模叶蓼、稗为湖南省烟田优势杂草种群,碎米荠、马唐、繁缕、喜旱莲子草、看麦娘、通泉草、鸭跖草、水苦荬为湖南省烟田区域性优势杂草种群。湖南省烟田杂草防除主要采用苗前土壤处理和苗后茎叶处理相结合的化学防除方法,主要使...

In order to clarify the main weed species and distribution,a systematic weed survey was conducted by using diagonal five-point sampling method in tobacco fields in Hunan province.The results showed that there were 77 weed species belonging to 30 families,including 14.29%of Gramineae weeds,81.82%of broad-leaf weeds and 3.89%of Cyperaceae weeds.Among the 77 weed species,annual weeds and perennial weeds accounted for 75.32%and 24.68%,respectively.The relative abundances of Acalypha australis,Polygonum lapathifolium,Echinochloa crus-galli,Cardamine hirsuta,Digitaria sanguinalis,Stellaria media,Alt...