Effects of competition and N and P supply on carbon isotope discrimination and <Superscript>15</Superscript>N-natural abundance in four grassland species期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Effects of competition and N and P supply on carbon isotope discrimination and 15N-natural abundance in four grassland species

Authors:	J.?T.?Tsialtas author-information" > author-information__contact u-icon-before" > mailto:tsialtas@hotmail.com" title=" tsialtas@hotmail.com" itemprop=" email" data-track=" click" data-track-action=" Email author" data-track-label=" " >Email author,M.?T.?Kassioumi,D.?S.?Veresoglou

Affiliation:	(1) School of Agriculture, Laboratory of Ecology and Environmental Protection, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece;(2) Present address: Hellenic Sugar Industry SA, Larissa Factory, GR-41110 Larissa, Greece

Abstract:	The effect of interspecific competition and element additions (N and P) on four grassland species (Poa pratensis, Lolium perenne, Festuca valida, Taraxacum officinale) grown under field conditions was studied. Two grasses (L. perenne, F. valida) grown in monoculture (absence of competition) showed lower carbon isotope discrimination (¹³C) and enriched ¹⁵N values. Nitrogen addition (as urea) had inconsistent effects on species ¹³C while caused enrichment of ¹⁵N of P. pratensis and F. valida but strong depletion of ¹⁵N of T. officinale. Phosphorous had no significant effect on ¹³C but depleted ¹⁵N of all species.

Keywords:	fertilization Festuca valida grasses Lolium perenne Poa pratensis Taraxacum officinale water use efficiency
本文献已被 SpringerLink 等数据库收录！

设为首页 | 免责声明 | 关于勤云 | 加入收藏