中国草地学报2026，Vol.48Issue(1)：74-88,15.DOI:10.16742/j.zgcdxb.20240335
氮磷配施调控白三叶入侵草地早熟禾草坪的竞争响应
Effects of Combined Nitrogen and Phosphorus Application on the Competitive Response of Poa pratensis Turf Invaded by Trifolium repens
摘要
Abstract
Trifolium repens exhibits strong invasive capacity in gramineous turf,particularly due to its vigorous stolon spreading,which severely compromises turf uniformity,posing a significant challenge in the maintenance of urban green spaces and sports fields.To control the invasion of Trifolium repens into Poa pratensis turf,this study applied 20 different combined nitrogen(N)and phosphorus(P)fertilizer treatments.Growth morphology,competitive indices,and turf visual quality of both Poa pratensis and Trifolium repens were measured.Principal component analysis and membership function method were employed to identify the optimal N and P fertilizer levels for the establishment and maintenance of Poa pratensis turf in arid and semi-arid regions of northern China,aiming to effectively suppress Trifolium repens growth while enhancing the quality of Poa pratensis turf.The comprehensive evaluation indicated that the treatment of P application at 35 g/m² without N,combined application of P at 35 g/m² and N at 18 g/m²,and N application at 18 g/m² without P resulted in superior overall turf performance,demonstrating potential for promotion in the establishment and maintenance of Poa pratensis turf in these regions.关键词
草地早熟禾/白三叶/氮/磷/生长形态/竞争能力/草坪质量Key words
Poa pratensis/Trifolium repens/Nitrogen/Phosphorus/Growth morphology/Competi-tive ability/Turf quality分类
农业科技引用本文复制引用
吴廷达,白小明,朱奇萌,何琳琳,冉福,李娟霞,闫玉邦,朱雅楠,胡水琴,王晗睿..氮磷配施调控白三叶入侵草地早熟禾草坪的竞争响应[J].中国草地学报,2026,48(1):74-88,15.基金项目
甘肃省林业和草原局甘肃省草原健康和退化评估科技支撑项目(LCJ20240177) （LCJ20240177）
甘肃省林业和草原局草原生态修复治理项目(LCJ20240172) （LCJ20240172）
甘肃省高校产业支撑计划项目"野生羊茅和草地早熟禾优异种质资源挖掘、创新与应用"(2025CYZC-040) （2025CYZC-040）
甘肃农业大学公招博士科研启动经费项目"草地早熟禾对干旱与营养胁迫的生理响应机制及适应策略"(GAU-KYQD-2024-06) （GAU-KYQD-2024-06）
