摘要
通过两年的系统调查，查明北京地区草坪地杂草有６２种，分属２２科。重要杂草有牛筋草（Ｅｌｅｎｓｉｎｅｉｎｄｉｃａ（Ｌ．）Ｇａｅｒｔｎ）、狗尾草（Ｓｅｔａｒｉｎｖｉｒｉｄｉｓ（Ｌ．）Ｂｅａｕｖ）、马唐（Ｄｉｇｉｔａｒｉａｓａｎｇｕｉｎａｌｉｓ（Ｌ．）Ｓｃｏｐ）和旋覆花（ＩｎｕｌａｊａｐｏｕｉｃａＴｈｕｎｂ）。农得时和草克星４０ｇ／亩用量在草坪播后苗前处理对牛筋草、马唐和一年生双子叶草的防效在８５％以上，不影响草坪的出苗和长势。除草通、丁草胺１５０ｍｌ／亩在草坪地苗后处理对马唐、牛筋草和稗草的防效达９０％，对草坪安全。圃草定８０ｇ／亩对马唐，稗草的防效达９０％，但对牛筋草效果差。恶唑禾草灵６０ｍｌ／亩，快杀稗４０ｇ／亩和８０ｇ／亩在草坪苗后茎叶处理，均可有效地防除马唐、稗草，且恶唑禾草灵对牛筋草有特效。两药剂对草坪安全。２，４－Ｄ丁酯５０ｍｌ／亩，阔叶净１ｇ／亩。
A total of 62 species of weed from 22 families were identified through 2 year systematic investigation.The most important weeds were Eleine indica,Setaria viridis,Digitaria sanguinalis and Inula japouica and their frequency of occurrence were 100 0%,89 5%,79 0% and 68.4%,respectively.Field experiments were conducted over a 2 year period to determine the effects of herbicides on weeds.The results indicated that Londx and NC 311 at 4 gai/mu applied prior to turf emergence gave more than 85% control on E.indica,S.viridis,D.sanguinalis and other annual broad leave weeds 30 DAT(Days After Treatment).They had no unfavorable effect on the emergence and verdure of turf.Stomp at 50 mlai/mu,Alchlor at 90 mlai/mu and Prodiamine at 50 gai/mu applied on immature turf controlled annual grasses effectively 30 DAT and they did not significantly affect the turf quality.Fenoxaprop at 42 mlai/mu and Quinclorac at 40 gai/mu applied on immature turf for foliar treatment also provided effective control of annual grasses and they did not reduce the turf quality.
出处
《华北农学报》
CSCD
北大核心
1997年第2期125-130,共6页
Acta Agriculturae Boreali-Sinica
关键词
草坪地
早熟禾
高羊茅
杂草危害
药剂防治
Turf
Chemical control
Kentucky bluegrass
Tall fescue
Weediness
