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（Inulajapouica Thunb）.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，苯达松135ml/亩在草坪苗后处理能有效地防除一年生双子叶杂草

关键词: 草坪地, 早熟禾, 高羊茅, 杂草危害, 化学防治

Abstract: 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.

Key words: Turf, Chemical control, Kentucky bluegrass, Tall fescue, Weediness

中图分类号: 

• S688.4(210)