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Soil structure and earthworm activity under different tillage systems in organic farming

Peigné, Joséphine; Aveline, Anne; Cannavaccuiolo, Mario; Giteau, Jean-Luc and Gautronneau, Yvan (2007) Soil structure and earthworm activity under different tillage systems in organic farming. Paper at: 3rd QLIF Congress: Improving Sustainability in Organic and Low Input Food Production Systems, University of Hohenheim, Germany, March 20-23, 2007.

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Summary

Organic farmers are encouraged to adopt conservation tillage to preserve soil quality and fertility and prevent erosion. However, many studies in different soil and climate conditions have demonstrated that the compaction of the untilled layer is higher in conservation tillage than in conventional tillage. As earthworm activity may help alleviate soil compaction in organic farming, the impact on the soil structure and earthworm population and activity was studied for 4 different tillage managements (1) mouldboard ploughing (MP), (2) shallow ploughing (SP), (3) reduced tillage (RT) and (4) no-tillage (NT), in 3 french areas. The first results are: (1) MP soil structure is better than SP, RT and NT, (2) water infiltration is higher at soil surface in SP, RT and NT, lower at 17 cm depth, (3) more earthworms, especially anecic species, are found in NT, (4) but more opening channels are found in MP. Then, during the first years of transition from MP to NT, soil structure is better in MP, and whereas earthworm numbers is reduced, it favours earthworm activity.


EPrint Type:Conference paper, poster, etc.
Type of presentation:Paper
Keywords:Conservation tillage, organic farming, soil structure, earthworms
Subjects: Soil
Research affiliation: France > ISARA - Institut supérieure d’agriculture Lyon
International Conferences > 2007: 3rd QLIF Congress > 3 Crop production / soil management
Related Links:http://orgprints.org/10417/
Deposited By: Peigné, Josephine
ID Code:9773
Deposited On:10 Mar 2007
Last Modified:12 Apr 2010 07:34
Document Language:English
Status:Published
Refereed:Not peer-reviewed
Additional Publishing Information: The final version of this paper is published in:
Niggli, Urs; Leifert, Carlo; Alföldi, Thomas; Lück, Lorna and Willer, Helga, Eds. (2007) Improving Sustainability in Organic and Low Input Food Production Systems. Proceedings of the 3rd International Congress of the European Integrated Project Quality Low Input Food (QLIF). University of Hohenheim, Germany, March 20 – 23, 2007. Research Institute of Organic Agriculture FiBL, CH-Frick.http://orgprints.org/10417/
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