Lancaster EPrints

Measurement of 15-N-dilution in nitrogen-fixing leguminous host-plants grown in heavy metal-contaminated soils amended with sewage sludge.

Obbard, J. P. and Jones, Kevin C. (2001) Measurement of 15-N-dilution in nitrogen-fixing leguminous host-plants grown in heavy metal-contaminated soils amended with sewage sludge. Environmental Pollution, 111 (2). pp. 311-320. ISSN 0269-7491

Full text not available from this repository.

Abstract

Rates of nitrogen fixation by Rhizobium in symbiosis with leguminous host-plants including white clover, broad bean and peas have been established in soils that have been amended experimentally with heavy metal-contaminated sewage sludges. Results from 15N-dilution experiments for the measurement of N2 fixation have shown that adverse heavy metal effects are apparent on symbiotic N2 fixation rates for white clover grown in inter-specific competition with ryegrass under mixed sward conditions, compared to white clover grown in pure sward. Further experiments on broad bean and pea indicated a significant, but minor-inhibitory metal-related effect on the rate of N2 fixation compared to untreated soils and soils amended with a relatively uncontaminated sludge. The implications of the results with respect to sludge utilisation in agriculture are discussed.

Item Type: Article
Journal or Publication Title: Environmental Pollution
Uncontrolled Keywords: Nitrogen fixation ; Rhizobium ; Metal contamination ; Soils ; Sewage sludge
Subjects: G Geography. Anthropology. Recreation > GE Environmental Sciences
Departments: Faculty of Science and Technology > Lancaster Environment Centre
ID Code: 21567
Deposited By: ep_ss_importer
Deposited On: 21 Jan 2009 15:21
Refereed?: Yes
Published?: Published
Last Modified: 26 Jul 2012 15:49
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/21567

Actions (login required)

View Item