Piktžolių kontrolės priemonių įtaka žieminių rapsų pasėlių piktžolėtumui ekologinėje žemdirbystėje

Abstract

The influence of different weed control methods and biological preparations on winter rape – weed competition in autumn before wintering in organic farming system was investigated at the Experimental Station of Aleksandras Stulginskis University in 2012. Weed control methods significantly influenced weed number in winter rape crop in organic farming system in autumn before wintering. The weed number in plots where thermal and mechanical weed control methods were used was significantly lower compared with weed number in plots where weed removal was used (supression). Strong but not significant correlation was established between winter rape crop density and weed density