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Der Einfluss von reduzierter Bodenbearbeitung und Zwischenfrüchten auf die Unkrautsamenbank nach ökologischem Winterweizen- und Kartoffelbau

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Schmidt, Jan Henrik; Junge, Stephan and Finckh, Maria R. (2017) Der Einfluss von reduzierter Bodenbearbeitung und Zwischenfrüchten auf die Unkrautsamenbank nach ökologischem Winterweizen- und Kartoffelbau. Paper at: 14. Wissenschaftstagung Ökologischer Landbau, Campus Weihenstephan, Freising-Weihenstephan, 07.-10. März 2017.

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Summary

Conservation agriculture is one answer to counteract problems that are arising with climate change and soil degradation since the period of agricultural intensification. The main objectives of conservation agriculture are reduction of tillage intensity and a
permanent soil cover by cash and cover crops. However, increased weed infestations are frequently reported in minimum tillage systems, particularly under organic
management, resulting in increased weed seed banks.
In two field experiments introduced in 2010 and 2011 and starting with two years grass-clover followed by winter wheat and potatoes, we evaluated the effect of chisel
ploughing with mulch application to potatoes and different cover crops after winter wheat on the weed seed bank. Therefore, soil cores were taken before sowing wheat
and after potato harvest and the viable weed seed bank from soil samples was assessed over a nine month period. Our results suggested a strong influence of weather conditions resulting in decreased and increased weed seed banks in the first and second experiments, respectively. Furthermore, winter wheat was confirmed as the main contributor of weed seeds to the seed bank resulting in dominances of winter
annual weeds.


EPrint Type:Conference paper, poster, etc.
Type of presentation:Paper
Keywords:plough, extirpator, mulch, annual weeds, Weizen, Kartoffel
Subjects: Crop husbandry > Crop combinations and interactions
Crop husbandry > Production systems > Cereals, pulses and oilseeds
Crop husbandry > Soil tillage
Crop husbandry > Weed management
Crop husbandry > Production systems > Root crops
Research affiliation: Germany > University of Kassel > Department of Ecological Plant Protection
International Conferences > 2017: Scientific Conference German Speaking Countries > Pflanzenbau
ISBN:978-3-89574-925-4
Deposited By: Hasreiter, Anna
ID Code:31891
Deposited On:04 Jul 2017 17:21
Last Modified:04 Jul 2017 17:21
Document Language:German/Deutsch
Status:Published
Refereed:Peer-reviewed and accepted
Additional Publishing Information:Dieser Beitrag ist im Tagungsband der 14. Wissenschaftstagung erschienen.
S. Wolfrum, H. Heuwinkel, H.J. Reents, u.a. (Hrsg.) (2017): Ökologischen Landbau weiterdenken - Verantwortung übernehmen - Vertrauen stärken. Beiträge der 14. Wissenschaftstagung Ökologischer Landbau, Freising-Weihenstephan, 7.-10. März 2017
Verlag Dr. Köster, Berlin

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