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Leaching of dissolved organic carbon (DOC) and nitrogen (DON) from grass-clover pastures after ploughing

Vinther, F.P.; Eriksen, J. and Hansen, E.M. (2004) Leaching of dissolved organic carbon (DOC) and nitrogen (DON) from grass-clover pastures after ploughing. Speech at: DOM 2004 - International workshop: Dissolved Organic Matter and the Cycling of Carbon, Nutrients and Metals, Bayreuth, Germany, October 3-6 2004.

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Summary

In mixed arable grassland systems there can be a considerable build-up of nitrogen (N) caused by input through symbiotic N2 fixation and by the deposition from grazing animals. After ploughing of such grazed grassland large amounts of inorganic N may be released through mineralisation and subsequently leached to deeper soil layers or eventually to the groundwater. However, not much is known about the contribution of dissolved organic nitrogen (DON) to the total amount of N leached.


EPrint Type:Conference paper, poster, etc.
Type of presentation:Speech
Keywords:DON, DOM, DOC, pasture, grass-clover
Subjects: Soil > Nutrient turnover
Crop husbandry > Production systems > Pasture and forage crops
Environmental aspects > Air and water emissions
Crop husbandry > Soil tillage
Research affiliation: Denmark > DARCOF II (2000-2005) > I.15 (NIT_GRASS) Nitrate leaching from dairy farming
Denmark > DARCOF II (2000-2005) > I.16 (OKOVAND) Regional groundwater protection by optimised organic farming systems
Deposited By: Vinther, Senior scientist Finn P.
ID Code:3374
Deposited On:30 Sep 2004
Last Modified:12 Apr 2010 07:29
Document Language:English
Refereed:Not peer-reviewed

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