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Stickstoffbilanzen in biologischen und konventionellen Anbausystemen Das Effizienz-Nachhaltigkeits-Dilemma

Mayer, Jochen; Jarosch, KA.; Hammelehle, Andreas; Dubois, David; Gunst, Lucie; Bosshard, C.; Frossard, Emmanuel; Mäder, Paul and Oberson, Astrid (2017) Stickstoffbilanzen in biologischen und konventionellen Anbausystemen Das Effizienz-Nachhaltigkeits-Dilemma. Paper at: 14. Wissenschaftstagung Ökologischer Landbau, Campus Weihenstephan, Freising-Weihenstephan, 07.-10. März 2017.

PDF - German/Deutsch


N-balances over 35 years from the DOK trial are presented and combined with Nstock changes in DOK treatments on different fertilisation levels. Results strongly indicate an N efficiency-sustainability dilemma: DOK treatments with a high nitrogen use efficiency (NUE) lose more soil stock N than those with a lower NUE but higher N losses from the system. The biodynamic system showed little advantage in terms of soil N stocks sustainability while the solely mineral fertilised conventional treatment had highest NUE across all inputs including soil N change.

EPrint Type:Conference paper, poster, etc.
Type of presentation:Paper
Keywords:nitrogen balance, nitrogen use efficiency, soil nitrogen stocks
Subjects: Environmental aspects > Biodiversity and ecosystem services
Farming Systems > Farm nutrient management
Research affiliation: Switzerland > Agroscope
Switzerland > ETHZ - Agrarwissenschaften
Switzerland > FiBL - Research Institute of Organic Agriculture Switzerland > Sustainability > Climate
Switzerland > FiBL - Research Institute of Organic Agriculture Switzerland
International Conferences > 2017: Scientific Conference German Speaking Countries > Enviroment and Sustainability
Deposited By: Hasreiter, Anna
ID Code:31925
Deposited On:04 Jul 2017 17:19
Last Modified:10 Nov 2020 08:14
Document Language:German/Deutsch
Refereed:Peer-reviewed and accepted
Additional Publishing Information:Dieser Beitrag ist im Tagungsband der 14. Wissenschaftstagung erschienen.
S. Wolfrum, H. Heuwinkel, H.J. Reents, u.a. (Hrsg.) (2017): Ökologischen Landbau weiterdenken - Verantwortung übernehmen - Vertrauen stärken. Beiträge der 14. Wissenschaftstagung Ökologischer Landbau, Freising-Weihenstephan, 7.-10. März 2017
Verlag Dr. Köster, Berlin

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