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2 Xinjiang Key Laboratory of Grassland Resources and Ecology, Urumqi, Xinjiang 830052, China, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1309573310422278559, articleId=1309573309767967134, tenantId=1146029695717560320, journalId=1308397196074385509, language=CN, title=豆禾混播牧草的种间竞争对土壤磷吸收效率的影响, columnId=1309565024058835950, journalTitle=草地学报, columnName=研究论文, runingTitle=null, highlight=null, articleAbstract=为评估混播方式对豆禾牧草磷利用效率及种间竞争的影响，通过盆栽实验设置同行（T）与异行（Y）两种混播处理，探究小黑麦-毛苕子（Triticale-Vicia villosa Roth）、小黑麦-箭筈豌豆（Tritical Vicia sativa L.）系统中磷利用效率、种间竞争格局与超产效应的关系。结果表明：（1）产量及超产效应呈小黑麦-毛苕子同行混播高于异行混播，小黑麦-箭筈豌豆则相反。（2）两混播系统异行混播相对产量（Relative yield，RY）均高于同行混播；侵占率（Encroachment rate，A）、竞争率（Competition rate，CR）、相对拥挤率（Relative crowding rate，K）均显示小黑麦为竞争优势种。（3）磷利用效率表现为：小黑麦-毛苕子中，小黑麦异行混播高于同行混播，毛苕子则相反；小黑麦-箭筈豌豆中，二者均为异行混播高于同行混播。阈值关系分析表明，异行混播下高竞争率与高磷利用效率协同诱导超产效应。综上，昭苏冷凉地区建植一年生牧草时，推荐小黑麦-箭筈豌豆异行混播模式。, authors=方菊梅^1,2, 窦梓镱^1,2, 李桂真^1,2, 郑伟^1,2, 王玲玲^1,2, 王钰杰^1,2, authorsList=方菊梅, 窦梓镱, 李桂真, 郑伟, 王玲玲, 王钰杰, authorCompany=1 新疆农业大学草业学院, 新疆 乌鲁木齐 830052;
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