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Stickstoffflüsse auf der Weide bei Vollweidehaltung im alpinen Raum Österreichs

Starz, Walter and Steinwidder, Andreas (2007) Stickstoffflüsse auf der Weide bei Vollweidehaltung im alpinen Raum Österreichs. [Nitrogen flows on the pasture at a seasonal grass-based system in the alpine area of Austria.] Poster at: Zwischen Tradition und Globalisierung - 9. Wissenschaftstagung Ökologischer Landbau, Universität Hohenheim, Stuttgart, Deutschland, 20.-23.03.2007.

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Summary

The aim of this investigation was to evaluate the dung distribution and the N-balance on the pasture in a seasonal grass-based system in organic farming. This investiga-tion was carried out on the research farm (680 m altitude, 1000 mm precipitation hereof 600 mm during 200 days vegetation period, 6.5 °C average temperature, 34 ha grassland hereof 10 ha pasture areas, 14 brown swiss dairy cows 610 kg live weight and 14 holstein frisian 540 kg live weight) of the Institute for Organic Farming (HBLFA Raumberg-Gumpenstein) in the alpine area of Austria. Two pasture areas (former mowing pasture and permanent grassland), Beifeld (2 ha, plant up to sloped) and Stallfeld (1.8 ha, steady sloped), were exemplarily used to show the dung distribution and the calculated N-balance. The dung distribution on the Stallfeld was more homo-geneous as on the Beifeld. A very high N removal was discovered on both areas. The accumulation (calculated 100-140 kg N ha-1) of N was much lower than the removal (calculated 210-240 kg N ha-1). One consequences of this high N removal was an increase of white clover (2005 12% and 2006 29% by weight), a legume which re-ceives the N via fixation. The long term impacts on the grassland diversity could not responded by one research year and further investigations are necessary.


EPrint Type:Conference paper, poster, etc.
Type of presentation:Poster
Keywords:Pflanzenernährung, Grünland, Rind, Weide
Subjects: Crop husbandry > Production systems > Pasture and forage crops
Animal husbandry > Production systems > Dairy cattle
Crop husbandry > Composting and manuring
Research affiliation: International Conferences > 2007: Scientific Conference on Organic Agriculture > 1 Plant and Soil > 1.5 Plant nutrition, soil fertility, fertilizers, farm yard manure
Austria > HBLFA Raumberg-Gumpenstein
International Conferences > 2007: Scientific Conference on Organic Agriculture
Deposited By: Starz, DI Walter
ID Code:9188
Deposited On:18 May 2007
Last Modified:12 Apr 2010 07:34
Document Language:German - Deutsch
Status:Published
Refereed:Peer-reviewed and accepted
Additional Publishing Information:Die endgültige Version des Beitrags ist veröffentlicht in:
S. Zikeli, W. Claupein, S. Dabbert, B. Kaufmann, T. Müller und A. Valle Zárate, Hrsg. (2007)
Zwischen Tradition und Globalisierung – 9. Wissenschaftstagung Ökologischer Landbau, Universität Hohenheim, Deutschland, 20.-23. März 2007, http://orgprints.org/10742/

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