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Productivity, Soil Fertility and Biodiversity in Organic Agriculture

Fliessbach, Dr. Andreas and Mäder, Dr. Paul (2006) Productivity, Soil Fertility and Biodiversity in Organic Agriculture. Paper at: Joint Organic Congress, Odense, Denmark, May 30-31, 2006.

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Summary

The DOK long-term field experiment is comparing organic and conventional farming systems since 1978. The systems mainly differ with respect to fertilization and plant protection. The crop yields of the organic systems averaged at 20% of the conventional over three seven-year crop rotation periods. Nutrient input (N, P, K) in the organic systems was 34 – 51 % lower than in the conventional systems, indicating and efficient production. Soil quality as indicated by physical, chemical and biological measures is markedly higher in the organic systems. Organic systems of the DOK trial can therefore be regarded as efficient with respect to productivity and safeguarding environmental quality and biodiversity.


EPrint Type:Conference paper, poster, etc.
Type of presentation:Paper
Subjects: Environmental aspects > Biodiversity and ecosystem services
Soil > Soil quality
Crop husbandry > Composting and manuring
Research affiliation: International Conferences > 2006: Joint Organic Congress > Theme 4: Crop systems and soils
Switzerland > FiBL - Research Institute of Organic Agriculture Switzerland > Soil Sciences
Deposited By: Fliessbach, Dr. Andreas
ID Code:7682
Deposited On:09 May 2006
Last Modified:12 Apr 2010 07:32
Document Language:English
Status:Published
Refereed:Not peer-reviewed

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