%A D. Atanassova
%A V. Koteva
%J Ende der Nische, Beitr?ge zur 8. Wissenschaftstagung ?kologischer Landbau
%T Verunkrautung in einer ?kologischen Fruchtfolge
%X Weed infestation was monitored in an organic crop rotation system in South Bulgaria. Best to cultivate before winter cereals was maize regarding weed infestation in our system. In spring chick-pea increasing Sinapis arvensis and Falopia convolvulus infestation was found, whereas the density of Alopecurus myosuroides and Avena spp. decreased. This is important for following winter cereals cultivation. 
%K ?kologischer Landbau, Unkr?uter, Unkraut, Verunkrautung, Beikraut, Ackerkulturen, Bulgarien
%E J He?
%E G Rahmann
%D 2005
%I kassel university press GmbH, Kassel
%L orgprints3942