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5374: Leaching of organic nitrogen and carbon after cultivating grass-clover pastures

Vinther, F.P.; Hansen, E.M. and Eriksen, J. (June 2005) Leaching of organic nitrogen and carbon after cultivating grass-clover pastures. Online at <http://www.darcof.dk/enews/mar05/leach.html>. Accessed March 2005

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Summary

Leaching of organic nitrogen (DON) and carbon (DOC) was measured after cultivating grass-clover of different age. It was found that DON and escpecially DOC was lost in considerable amounts, and that the leaching depends upon crop and management. The highest concentrations of DON were measured in the bare soil treatment, whereas concen-trations in catch crop treatments were between 1.2 and 3.2 mg N L-1. The leaching of DOC showed opposite trends compared to leaching of DON with higher values in the catch crop treatments (296 - 310 kg DOC ha-1) than in bare soil treatments (174 - 217 kg DOC ha-1).

Document Language:English
Keywords:DOC, DON, pastures, leaching
Subject Areas: Soil > Nutrient turnover
Crop husbandry > Production systems > Pasture and forage crops
Environmental aspects > Air and water emissions
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
Funding Part:75-100%
Orgprints ID Number:5374
Contact:Vinther, Senior scientist Finn P.
Deposited On:01 September 2005
EPrint Type:Web product
Published?:Published
Online at:http://www.darcof.dk/enews/mar05/leach.html
Peer Review Status:Not peer-reviewed
Additional Publishing Information:Accessed March 2005

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