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Energieeffizienz der Fruchtfolgen viehloser Ökobetriebe und eines konventionellen Ackerbaubetriebs in Schleswig-Holstein

Loges, Ralf; Biernat, Lars and Taube, Friedhelm (2013) Energieeffizienz der Fruchtfolgen viehloser Ökobetriebe und eines konventionellen Ackerbaubetriebs in Schleswig-Holstein. Paper at: 12. Wissenschaftstagung Ökologischer Landbau, Rheinische Friedrich-Wilhelms-Universität, Bonn, 5. bis 8. März 2013.

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Summary

Several studies have shown that changing from conventional to organic farming is an alternative to reduce negative impacts on the environment, for example nitrogen losses, reduced biodiversity and input of fossil energy per unit land and per unit product. In organic agriculture, as well, there is currently a trend towards specialized farming systems. To compensate for the lack of data on energy efficiency measured at farm scale, a comparison between three differently managed organic all-arable crop rotations and a typical rotation of typical regional N-intensive conventional farm was carried out over a two-year period at a highly productive site in northern Germany. Comparing the all-arable crop rotations, the organic systems had a 62 % lower output measured in MJ metabolizable energy. Due to a 74 % lower input of fossil energy, the organic crop rotations showed a 37.7 % higher energy efficiency than the compared conventional rotation. Taking into account the area of land needed to produce the same amount of energy, the conventional system was more efficient. The net energy gain per hectare (derived from subtracting energy input from the gross energy output) of the conventional farm of 95.96 GJ ha-1 was considerably higher than the average of the 3 organic crop rotations (39.69 GJ ha-1).


EPrint Type:Conference paper, poster, etc.
Type of presentation:Paper
Keywords:Energieeffizienz, Ackerbaubetrieb, Fruchtfolge, Leguminosenanteil
Subjects: Crop husbandry
Environmental aspects > Biodiversity and ecosystem services
Research affiliation: Germany > Universität Kiel > Department of Crop Production and Plant Breeding > Grassland and Forage Production/Organic Farming
International Conferences > 2013: Scientific Conference Organic Agriculture > Nature & environment
Related Links:http://www.wissenschaftstagung.de/, https://www.verlag-koester.de/index.php?id=114&tx_fbmagento
Deposited By: Loges, Dr. Ralf
ID Code:21593
Deposited On:09 Sep 2013 12:39
Last Modified:27 Nov 2013 15:00
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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