178: Symbiotic nitrogen fixation and N-transfer in a grass-white clover mixture
(2000) Symbiotic nitrogen fixation and N-transfer in a grass-white clover mixture. Grassland Science in Europe 5:pp. 415-417.*
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Summary
Symbiotic N2 fixation (SNF) and transfer of fixed N from clover to grass in a grass-white clover mixture was measured during two years using 15N isotope dilution techniques. White clover derived from 87 to 99% of its N from the atmosphere. The total SNF ranged from 150 to 277 kg N ha-1 yr-1, which corresponded to 34-45 mg N fixed per gram of white clover dry weight. The transfer of fixed N from clover to grass corresponded to approximately 10 kg N ha-1 yr-1.
| Document Language: | English |
|---|---|
| Keywords: | N2 fixation, N transfer, Perennial ryegrass, white clover |
| Subject Areas: | Soil > Nutrient turnover Soil > Soil quality Soil > Soil quality > Soil biology Crop husbandry > Production systems > Pasture and forage crops |
| Research affiliation: | Denmark > DARCOF I (1996-2001) > I.2 Nitrogen fixation, recycling and leaching in organic cropping systems |
| Funding Part: | 25-75% |
| Orgprints ID Number: | 178 |
| Contact: | Vinther, Senior scientist Finn P. |
| Deposited On: | 11 October 2002 |
| EPrint Type: | Journal paper |
| Published?: | Published |
| Peer Review Status: | Peer-reviewed and accepted |
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