302: Bodenfruchtbarkeit und biologische Vielfalt im ökologischen Landbau [Soil fertilty and biodiversity in organic farming]
(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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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.
Additional Summary
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.
| Document Language: | Deutsch - German |
|---|---|
| Keywords: | biologischer Landbau, Langzeitversuch, Effizienz, Biodiversität, Bodenfruchtbarkeit, DOK |
| Subject Areas: | Farming Systems Soil > Soil quality > Soil biology Environmental aspects > Biodiversity and ecosystem services Soil > Soil quality |
| Research affiliation: | Switzerland > Agroscope > FAL Switzerland > FiBL > Annual Crops |
| Orgprints ID Number: | 302 |
| Contact: | Willer, Dr. Helga |
| Deposited On: | 07 March 2003 |
| EPrint Type: | Journal paper |
| Published?: | Published |
| Online at: | http://www.fibl.ch/archiv/maeder-et-al-2002-oel-dok-science.pdf |
| Peer Review Status: | Not peer-reviewed |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. |
| Related Links: | http://www.fibl.ch/forschung/anbautechnik-einjaehrig/dok/index.php, http://www.fibl.ch/english/research/annual-crops/dok/index.php |
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