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Ertragspotentiale ökologischer Anbausysteme aus pflanzenbaulicher Sicht

Neuhoff, Daniel (2015) Ertragspotentiale ökologischer Anbausysteme aus pflanzenbaulicher Sicht. [Yield potentials of organic farming systems from an agronomic point of view.] Paper at: 13. Wissenschaftstagung Ökologischer Landbau, Hochschule für nachhaltige Entwicklung Eberswalde, 17. - 20. März 2015.

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PDF - German/Deutsch


The potential of Organic Agriculture to feed the world is currently under discussion. Contrasting statements concerning this issue are mainly due to missing distinction between socio-economic and biophysical impact factors, to methodical issues of yield comparisons and to sole regional observations. Instead of comparing individual data sets in meta-analyses it is proposed to explore yield potentials of different systems from an agronomic perspective. Yields in organic systems are predominantly restricted by N-availability as a function of legume growing. The potential of replacing mineral N by biological nitrogen fixation differs between regions, but generally limits the productivity of cereals. A major determinant for legume cultivation is low pressure on land use, i.e. where the availability of agricultural area per capita is high. Establishing organic systems with legumes in regions with intensive pure crop production, e.g. paddy rice in Bangladesh, would result in a significant decrease of cereal yield and production with a subsequent change in human diet.

EPrint Type:Conference paper, poster, etc.
Type of presentation:Paper
Keywords:ertragslimitierende Faktoren, biologische N2-Fixierung, Fruchtfolge
Subjects: Crop husbandry > Crop combinations and interactions
Soil > Nutrient turnover
Research affiliation: Germany > University of Bonn > Institute of Organic Agriculture > Plant Production
International Conferences > 2015: Scientific Conference of the German Speaking Countries > Plant & soil
Related Links:http://www.wissenschaftstagung.de/
Deposited By: Neuhoff, Dr. Daniel
ID Code:27193
Deposited On:22 Jun 2015 14:39
Last Modified:13 Jan 2016 10:25
Document Language:German/Deutsch
Refereed:Peer-reviewed and accepted
Additional Publishing Information:Dieser Beitrag ist im Tagungsband der 13. Wissenschaftstagung erschienen.
Häring, A.M., Hörning, B., Hoffmann-Bahnsen, R., Luley, H., Luthardt, V., Pape, J., Trei, G. (Hrsg.)(2015):
Am Mut hängt der Erfolg - Rückblicke und Ausblicke auf die ökologische Landbewirtschaftung.
Beiträge zur 13. Wissenschaftstagung Ökologischer Landbau, Hochschule für nachhaltige Entwicklung Eberswalde, 17.-20. März 2015
Verlag Dr. Köster, Berlin

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