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Wirkungen konservierender Bodenbearbeitung auf Regenwürmer unter Kleegras im ökologischen Landbau

Haby, Jessica; Döring, Thomas F.; Crowley, Oliver; Lazzaro, Mariaterresa and Smith, Jo (2015) Wirkungen konservierender Bodenbearbeitung auf Regenwürmer unter Kleegras im ökologischen Landbau. [Effects of reduced tillage on earthworms during the ley phase in an organic rotation.] Paper at: 13. Wissenschaftstagung Ökologischer Landbau, Hochschule für nachhaltige Entwicklung Eberswalde, 17. - 20. März 2015.

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Summary

A key challenge in organic agriculture is the reduction of tillage intensity. While previous research has shown earthworms to benefit from reduced tillage (RT), little is known about after-effects of RT during the grass/clover ley phase in organic rotations. In a large-scale replicated on-farm trial in England we studied earthworm populations before and during the ley phase, comparing the Ecodyn cultivator (tilling depth: 7.5 cm) with a mouldboard plough (depth: 15 cm). Spring sampling of earthworms during the ley phase revealed no significant difference in earthworm densities between the two tillage treatments while two years earlier in the arable phase, earthworm densities had been significantly higher under RT. Also, differences in species composition between the tillage treatments were attenuated after establishment of the ley. We conclude that grass/clover periods in organic rotations contribute to a recovery of earthworm populations after disturbance by the plough.

Summary translation

A key challenge in organic agriculture is the reduction of tillage intensity. While previous research has shown earthworms to benefit from reduced tillage (RT), little is known about after-effects of RT during the grass/clover ley phase in organic rotations. In a large-scale replicated on-farm trial in England we studied earthworm populations before and during the ley phase, comparing the Ecodyn cultivator (tilling depth: 7.5 cm) with a mouldboard plough (depth: 15 cm). Spring sampling of earthworms during the ley phase revealed no significant difference in earthworm densities between the two tillage treatments while two years earlier in the arable phase, earthworm densities had been significantly higher under RT. Also, differences in species composition between the tillage treatments were attenuated after establishment of the ley. We conclude that grass/clover periods in organic rotations contribute to a recovery of earthworm populations after disturbance by the plough.

EPrint Type:Conference paper, poster, etc.
Type of presentation:Paper
Keywords:Reduzierte Bodenbearbeitung, Regenwürmer, Resilienz
Subjects: Crop husbandry > Soil tillage
Soil
Research affiliation: European Union > CORE Organic II > TILMAN-ORG
Germany > University of Berlin - HU
International Conferences > 2015: Scientific Conference of the German Speaking Countries > Plant & soil
UK > Organic Research Centre (ORC) - Elm Farm
ISBN:978-3-89574-885-1
DOI:26932
Related Links:http://www.wissenschaftstagung.de/
Deposited By: Döring, Dr Thomas F.
ID Code:26932
Deposited On:22 Jun 2015 14:27
Last Modified:13 Jan 2016 10:08
Document Language:German/Deutsch
Status:Published
Refereed:Peer-reviewed and accepted
Additional Publishing Information:Dieser Beitrag ist im Tagungsband der 13. Wissenschaftstagung erschienen.
Häring, A.M., Hörning, B., Hoffmann-Bahnsen, R., Luley, H., Luthardt, V., Pape, J., Trei, G. (Hrsg.)(2015):
Am Mut hängt der Erfolg - Rückblicke und Ausblicke auf die ökologische Landbewirtschaftung.
Beiträge zur 13. Wissenschaftstagung Ökologischer Landbau, Hochschule für nachhaltige Entwicklung Eberswalde, 17.-20. März 2015
Verlag Dr. Köster, Berlin

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