creators_name: Casagrande, Marion creators_name: David, Christophe creators_name: Valentin Morison, Muriel creators_name: Jeuffroy, Marie-Hélène type: conference_item datestamp: 2007-03-06 lastmod: 2009-08-20 14:35:30 metadata_visibility: show title: Indicators of weed competition on Organic Winter Wheat ispublished: pub subjects: 3cereals subjects: 9weed full_text_status: public keywords: organic winter wheat, weeds, indicators, weed density, Shannon index abstract: 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. date: 2007 date_type: published refereed: never citation: Casagrande, Marion; David, Christophe; Valentin Morison, Muriel and Jeuffroy, Marie-Hélène (2007) Indicators of weed competition on Organic Winter Wheat. 3rd QLIF Congress: Improving Sustainability in Organic and Low Input Food Production Systems, University of Hohenheim, Germany, March 20-23, 2007. document_url: http://orgprints.org/10311/1/casagrande-etal-2007-winterwheat.pdf