Rinnofner, T.; Farthofer, R.; Friedel, J.K.; Pietsch, G.; Loiskandl, W. and Freyer, B. (2005) Stickstoffaufnahme und Biomasseertrag von Zwischenfrüchten und deren Auswirkungen auf Bodennitratgehalte und die Folgekultur unter den Bedingungen des Ökologischen Landbaus im pannonischen Klimagebiet. [Nitrogen uptake and yield of catch crops and their impact on nitrate content in soil under the conditions of organic farming in the pannonic climate region.] In: Heß, J and Rahmann, G (Eds.) Ende der Nische, Beiträge zur 8. Wissenschaftstagung Ökologischer Landbau, kassel university press GmbH, Kassel.
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Summary in the original language of the document
Data on the potential of catch crops to reduce soil nitrate contents, on their N accumulation and biological nitrogen fixation (BNF) are lacking for organic farming in the dry, pannonic region of Eastern Austria. The effect of legume, non-legume, and legume + non-legume crops used as catch crops on inorganic soil nitrogen, crop biomass and crop N, and BNF were tested in comparison to bare fallow. Non-legumes and legumes + non-legumes were more efficient than legumes in reducing inorganic soil N contents in autumn and nitrate contents in soil solution from the subsoil in winter. This reduction in inorganic soil N did not last until March of the following year due to N mineralisation from the mulch. The legume + non-legume mixture contained a larger amount of crop N than both legumes and non-legumes. This was due to the combined effect of soil-N uptake by the non-legumes and BNF by the legumes in the mixture.
EPrint Type: | Conference paper, poster, etc. |
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Type of presentation: | Paper |
Keywords: | Bodenfruchtbarkeit, Pflanzenbau, Wasserhaushalt |
Subjects: | Crop husbandry > Crop combinations and interactions |
Research affiliation: | International Conferences > 2005: Scientific Conference on Organic Agriculture Austria > Univ. BOKU Wien > Sustainable Agr. Systems - IfÖL |
Deposited By: | Rinnofner, Mag. Thomas |
ID Code: | 3431 |
Deposited On: | 05 Mar 2005 |
Last Modified: | 12 Apr 2010 07:29 |
Document Language: | German/Deutsch |
Status: | Published |
Refereed: | Peer-reviewed and accepted |
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