title: Soil Fertility and Biodiversity in Organic Farming creator: Mäder, Paul creator: Fliessbach, Andreas creator: Dubois, David creator: Gunst, Lucie creator: Fried, Padruot creator: Niggli, Urs subject: Nutrient turnover subject: Soil biology subject: Biodiversity and ecosystem services description: An understanding of agroecosystems is a 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. date: 2002-05 type: Journal paper type: NonPeerReviewed format: application/pdf identifier: http://orgprints.org/5514/1/Maeder-2002-Science-DOC-Trial.pdf format: application/pdf identifier: http://orgprints.org/5514/2/maeder-et-al-Science_suppl_mat.pdf identifier: Mäder, Paul; Fliessbach, Andreas; Dubois, David; Gunst, Lucie; Fried, Padruot and Niggli, Urs (2002) Soil Fertility and Biodiversity in Organic Farming. Science, 296, pp. 1694-1697. relation: http://orgprints.org/5514/