Hodge, A. (2003) Plant nitrogen capture from organic matter as affected by spatial dispersion, interspecific competition and mycorrhizal colonization. New Phytologist, 157 (2). pp. 303-314. ISSN 0028-646X
Abstract
•The capture of nitrogen (N) by plants from N-rich complex organic material differing in spatial (uniform dispersion or discrete patches) heterogeneity was measured, as well as the subsequent impact on N capture of the addition of a mycorrhizal inoculum ( Glomus hoi ).
•The organic material was dual-labelled with 15 N and 13 C to follow plant uptake of N (as 15 N) and to determine the amounts of original 13 C and 15 N which remained in the soil at harvest. The organic material was added to microcosm units containing Lolium perenne or Plantago lanceolata in intra or interspecific competition.
•Plant N capture from the dispersed organic material was more than twice that from the discrete patch (dispersed: 17%; discrete: 8%). There was no effect of species composition or the mycorrhizal inoculum on total plant N capture except when in interspecific plant competition. Here, N capture was dependent on the root length produced and was always higher when the mycorrhizal inoculum was present.
•Mycorrhizal colonization increased N capture from the organic material when in interspecific plant competition but not in monoculture.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | Open access copy available from the journal web site. |
Keywords: | arbuscular mycorrhizal (AM) fungi, decomposition, organic material, spatial heterogeneity, intra- and interspecific competition |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Biology (York) |
Depositing User: | Open Access From Journal |
Date Deposited: | 22 Dec 2008 19:27 |
Last Modified: | 22 Dec 2008 19:27 |
Published Version: | http://dx.doi.org/10.1046/j.1469-8137.2003.00662.x |
Status: | Published |
Publisher: | Wiley-Blackwell |
Refereed: | Yes |
Identification Number: | 10.1046/j.1469-8137.2003.00662.x |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:5094 |