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Site specific weed control as a part of the reduction program chemical plant protection

Summary
The complete article is written in German
From 1999 to 2005, long-term experiments in winter cereals with site specific weed control showed a significant reduction in herbicide use by post-emergence application. The method represents a minimising strategy in the context of chemical weed control. Site specific weed control accomplishes the demands and objectives of the German reduction program for chemical plant protection. Subject to groups of weed species and single weed species, 70 to 85 % of arable fields remained untreated with herbicides in specific years. In average, over a period of 7 years a herbicide reduction of 50 % could be estimated. There were no yield differences between treated and untreated areas.

german version

Keywords/Stichworte:Reduction program; herbicides; weed distribution; site specific weed control; winter wheat

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Autor:H. NORDMEYER, Institut für Unkrautforschung, Biologische Bundesanstalt für Land- und Forstwirtschaft, Messeweg 11-12, D-38104 Braunschweig, E-Mail: H.Nordmeyer@bba.de

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