A new possibility of pre- and post emergence mono- and dicotyledonous weed control in winter rape.

摘要

The field trials were conducted in 2006-2008 on the experimental fields of the Department of Agronomy SGGW in Chylice. The aim of the research was to evaluate the efficacy of herbicides BAS 773 00 H and Butisan Star 416 SC for weed control in winter oilseed rape. The application of tested products was performed at three development stages of winter oilseed rape: preemergency, during emergency and post-emergency. The herbicides were applied at doses BAS 773 00 H 2.0 and 2.5 l/ha; Butisan Star 416 SC 2.0; 2.5 or 3.0 l/ha. Papaver rhoeas, Viola arvensis and Apera spica-venti dominated in winter oilseed rape. The obtained results showed that all tested herbicides were highly effective (80-100%) in controlling of the following species: P. rhoeas, Veronica spp., Galium aparine, Lamium amplexicaule, Stellaria media and A. spica-venti. The use of herbicides at pre-emergency and emergency stages was more effective against weeds than post-emergency application.