10311: Indicators of weed competition on Organic Winter Wheat

Casagrande, Marion; David, Christophe; Valentin Morison, Muriel and Jeuffroy, Marie-Hélène (2007) Indicators of weed competition on Organic Winter Wheat. Poster presented 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 winter wheat production is limited by climatic and agronomic factors, including weed competition. The incidence of weeds on yield limitation can be characterized through various early indicators to predict weed occurrence and competition. A network of 10 fields of organic winter wheat was implemented in the South East of France in 2005-2006. Results showed that weed density, dynamics and diversity are good indicators for weed occurrence and competition.

Document Language:	English
Keywords:	organic winter wheat, weeds, indicators, weed density, Shannon index
Subject Areas:	Crop husbandry > Production systems > Cereals, pulses and oilseeds Crop husbandry > Weed management
Research affiliation:	European Union > QualityLowInputFood > Subproject 3: Crop production systems International Conferences > QLIF Congress 2007 > 3 Crop production / soil management
Total budget (Euro):	0
Orgprints ID Number:	10311
Contact:	DAVID, Dr Christophe
Deposited On:	06 March 2007
EPrint Type:	Conference poster
Published?:	Published
Type of presentation:	Poster
Peer Review Status:	Not peer-reviewed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/ Printed copies may be ordered from the FiBL Shop at www.shop.fibl.org.

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