混播对草坪建植与病害的影响  

Effects of mixture sowing on establishment and diseases of turf

作　　者：李春杰[1] 南志标[1] 

机构地区：[1]兰州大学草地农业科技学院甘肃草原生态研究所,甘肃兰州730020

出　　处：《草业科学》2002年第8期63-66,共4页Pratacultural Science

基　　金：甘肃省自然科学基金项目 (ZR 96 0 5 3 )资助

摘　　要：以我国草坪建植中常用的草地早熟禾、多年生黑麦草和高羊茅为供试种 ,在兰州市建植了单播与混播草坪 ,观测了出苗速度、生长速度、成坪速度、盖度、越夏率、越冬率、枯黄率及主要病害。结果表明 :黑麦草的出苗和生长速度明显大于高羊茅和早熟禾 ,而成坪速度则与高羊茅和混播草坪相当 ;建植后混播草坪中黑麦草的比例逐渐下降 ,早熟禾的比例逐渐上升 ,高羊茅的比例则变化不大 ,但黑麦草在建植后的一年半时间内始终占据优势。 3种草坪草的主要病害为早熟禾溶失病、黑麦草叶斑病和高羊茅叶斑病 。Mixture and mono sowing turf were established by Poa pratensis L cv Fortunate, Lolium perenne L cv Crocdile and Festuca arundinacea Schreb cv Watersaver The rates of emergence, growth, turf establishment, coverage, over summering, over-wintering and yellowing were measured The main diseases were surveyed as well The results indicated that both emergence and growth rate of Lolium were higher than those of Poa and Festuca , but turf establishing rate of Lolium was as equivalent as those of Festuca and mixture sowing turf The ratio of Lolium, Poa and Festuca among mixture sowing established turf was decreased gradually, increased gradually and no big increase, respectively However, Lolium still was predominant species in one and half years after turf established The main diseases were melting out on Poa caused by Drechslera poae , leaf spot on Lolium and leaf spot on Festuca caused by Bipolaris sorokiniana The disease incidence of mixture sowing turf was lower than that of mono sowing turf

关 键 词：混播 草坪建植 病害 

分 类 号：S688.4[农业科学—观赏园艺]