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 |
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