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Bodenfruchtbarkeit und biologische Vielfalt im ökologischen Landbau

Mäder, Dr. Paul; Fliessbach, Dr. Andreas; Dubois, Dr. David; Gunst, Lucie; Fried, Dr. Padruot and Niggli, Dr. Urs (2002) Bodenfruchtbarkeit und biologische Vielfalt im ökologischen Landbau. [Soil fertilty and biodiversity in organic farming.] Oekologie & Landbau, 124, pp. 12-16.

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Online at: http://www.fibl.ch/archiv/maeder-et-al-2002-oel-dok-science.pdf

Summary

Um die Effektivität landwirtschaftlicher Anbausysteme zu beurteilen, bedarf es eines Verständnisses der Agrarökosysteme. Eine 21-jährige Studie ergab 20 Prozent geringere Erträge bei ökologischen Anbausystemen gegenüber konventionellen, obgleich der Einsatz von Düngemitteln und Energie um 34 bis 53 Prozent und der von Pestiziden um 97 Prozent geringer war. Wahrscheinlich führen die erhöhte Bodenfruchtbarkeit und die größere biologische Vielfalt in den ökologischen Versuchsparzellen dazu, dass diese Systeme weniger auf Zufuhr von außen angewiesen sind.

Summary translation

An understanding of agroecosystems is key to determining effective farming systems. Here we report results from a 21-year study of agronomic and ecological performance of biodynamic, bioorganic, and conventional farming systems
in Central Europe. We found crop yields to be 20% lower in the organic systems, although input of fertilizer and energy was reduced by 34 to 53% and pesticide input by 97%. Enhanced soil fertility and higher biodiversity found in
organic plots may render these systems less dependent on external inputs.

EPrint Type:Journal paper
Keywords:biologischer Landbau, Langzeitversuch, Effizienz, Biodiversität, Bodenfruchtbarkeit, DOK
Subjects: Farming Systems
Soil > Soil quality > Soil biology
Environmental aspects > Biodiversity and ecosystem services
Soil > Soil quality
Research affiliation: Switzerland > Agroscope > ART - Reckenholz location
Switzerland > FiBL - Research Institute of Organic Agriculture Switzerland > Soil Sciences
Related Links:http://www.fibl.ch/forschung/anbautechnik-einjaehrig/dok/index.php, http://www.fibl.ch/english/research/annual-crops/dok/index.php
Deposited By: Willer, Dr. Helga
ID Code:302
Deposited On:07 Mar 2003
Last Modified:12 Apr 2010 07:27
Document Language:German - Deutsch
Status:Published
Refereed:Not peer-reviewed
Additional Publishing Information:This is the unauthorised translation of a paper which was originally published in the Science magazine.
Please refer to the original paper:
MAEDER P, FLIESSBACH A, DUBOIS D, GUNST L, FRIED P, NIGGLI U (2002) Soil Fertility and Biodiversity in Organic Farming. Science 296, 1694-1697.

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