杂草科学
雜草科學
잡초과학
WEED SCIENCE
2014年
1期
57-59
,共3页
里下河%草相演变%恶性杂草
裏下河%草相縯變%噁性雜草
리하하%초상연변%악성잡초
Lixiahe region%weeds-phase shifts%harmful weeds
新中国成立以来，江苏省盐城市盐都区里下河区域草相发生4次大变更，主要恶性杂草变化明显。沤田以眼子菜为主；稻麦连作移栽田人工除草期有稗草、牛毛草、球花碱草等；稻麦连作移栽田化学除草期以稗草为主；稻麦连作直播田有稗草、千金子、马唐、杂草稻等。目前主要防控策略包括土壤封闭、茎叶处理、人工除草等，针对存在的问题提出对策。
新中國成立以來，江囌省鹽城市鹽都區裏下河區域草相髮生4次大變更，主要噁性雜草變化明顯。漚田以眼子菜為主；稻麥連作移栽田人工除草期有稗草、牛毛草、毬花堿草等；稻麥連作移栽田化學除草期以稗草為主；稻麥連作直播田有稗草、韆金子、馬唐、雜草稻等。目前主要防控策略包括土壤封閉、莖葉處理、人工除草等，針對存在的問題提齣對策。
신중국성립이래，강소성염성시염도구리하하구역초상발생4차대변경，주요악성잡초변화명현。구전이안자채위주；도맥련작이재전인공제초기유패초、우모초、구화감초등；도맥련작이재전화학제초기이패초위주；도맥련작직파전유패초、천금자、마당、잡초도등。목전주요방공책략포괄토양봉폐、경협처리、인공제초등，침대존재적문제제출대책。
Since the founding of new China ,weed populations in Lixiahe region of Yandu district have experienced four major shifts,with changes in the most prevalent weed species as expected .Potamogeton distinctus was the dominant weed in waterlogged fields .During the period of manual weeding of continuous transplanted rice and wheat cropping ,Echinoch-loa crusgalli,Bulbostylis barbata and Cyperus difformis were prevalent .With the change to chemical weeding and direct seeding in this cropping system,E.crusgalli,Leptochloa chinensis,Digitaria sanguinalis and weedy rice(Oryza sativa) be-came the most dominant weeds .At present,the main prevention and control strategies include the application of pre -e-mergence,post-emergence herbicides and manual weeding .
