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Bringt „Öko“ mehr Humus? Einschätzung der aktuellen Humusbilanzen der ökologisch und der konventionell bewirtschafteten Ackerfläche in Deutschland

Brock, Christopher and Leithold, Günter (2013) Bringt „Öko“ mehr Humus? Einschätzung der aktuellen Humusbilanzen der ökologisch und der konventionell bewirtschafteten Ackerfläche in Deutschland. Poster at: 12. Wissenschaftstagung Ökologischer Landbau, Rheinische Friedrich-Wilhelms-Universität, Bonn, 5. bis 8. März 2013.

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Summary

We calculated humus balances for organic and conventional cropland in Germany and compared them to each other in order to find out whether organic farming comprises a better humus reproduction than conventional farming, as commonly assumed. Applying a dynamic humus balance model that was parametrized based on data from agrostatistical reports we yielded comparable balances for the two farming systems. The reason was mainly a considerably lower stocking on organic farms, and the low N supply. However: a superior cropland structure brought the balance to the same level as with conventional agriculture despite of these factors. Due to shortcomings in model parametrization caused by the available data base, results may not be over-interpreted. Still, it can be concluded that the promotion of humus stocks in arable soils is not a label effect of organic farming, but requires active management, especially with the present specialization trends.


EPrint Type:Conference paper, poster, etc.
Type of presentation:Poster
Keywords:Humusbilanz, Systemvergleich
Subjects:"Organics" in general
Soil
Environmental aspects
Research affiliation: Germany > University of Gießen
International Conferences > 2013: Scientific Conference Organic Agriculture > Plant & soil
Related Links:http://www.wissenschaftstagung.de/, https://www.verlag-koester.de/index.php?id=114&tx_fbmagento[shop][route]=catalog&tx_fbmagento[shop][controller]=product&tx_fbmagento[shop][action]=view&tx_fbmagento[shop][id]=1137&tx_fbmagento[shop][s]=beitrage-zur-12-wissenschaftstagung-okologischer-land
Deposited By: Brock, Christopher
ID Code:21557
Deposited On:09 Sep 2013 12:37
Last Modified:11 Nov 2013 16:23
Document Language:German/Deutsch
Status:Published
Refereed:Peer-reviewed and accepted
Additional Publishing Information:Dieser Beitrag ist im Tagungsband der 12. Wissenschaftstagung erschienen.
Dr. D. Neuhoff, C. Stumm, S. Ziegler u.a. (Hrsg.)
Beiträge zur 12. Wissenschaftstagung Ökologischer Landbau
Ideal und Wirklichkeit: Perspektiven ökologischer Landbewirtschaftung
Erscheinungsjahr: 2013
ISBN-13: 9783895748158
Verlag Dr. Köster, Berlin

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