摘要：In organic production of kohlrabi (Brassica oleracea L.var.gongylodes L.) in the open area in the village of Kisač during 2010 growing season 21 weed species were found.Out of the total number of taxa found,17 were weed-ruderal,3 were ruderal and 1 was segetal weeds.Most of the registered weed species bloom in the growing season (April - September).The analysis of life forms of weed species in kohlrabi crop proved the dominance of therophyta (19 taxa,90.48%).Geophytes are represented by 9.52%.The ecological analysis of the weed flora indicates that the habitat of the analyzed agroecosystem is: moderately humid (F - 2.48),neutral to slightly alkaline (R - 3.24),meso-eutrophic (N - 3.62),with medium organic-mineral content (H - 3.05),adequate aeration (D - 3.76) and non-saline (S- - 85.72%).The weed flora is dominated by thermophilous plants (T - 3.95) adapted to full light,but also to some shadow (L - 3.95),as well as to the moderately continental climatic conditions (K - 3.09).Phytogeographical analysis shows the dominance of taxa of wide distribution (80.95%,17 taxa),which is characteristic of the weed flora.In organic production weeds and cultivated plants should be balanced,so the biggest problem is weed control technology.Therefore,the knowledge of the weed flora and its biological and ecological characteristics is a necessary prerequisite for choosing the method of its control and prevention.
其他摘要：Pri organskoj proizvodnji kelerabe (Brassica oleracea L.var.gongylodes L.) na otvorenom prostoru u ataru sela Kisač,tokom vegetacionog perioda 2010.godine,konstatovana je 21 vrsta korova.Od ukupnog broja konstatovanih vrsta,17 je korovsko-ruderalnih,3 ruderalne i 1 segetalni korov.Većina konstatovanih korovskih vrsta cveta u vegetacionom periodu (april – septembar).Analizom životnih formi korovskih vrsta u usevu kelerabe konstatovana je dominacija terofita (19 taksona,90,48%).Geofite su zastupljene sa 9,52% (2 taksona).Prose;ne vrednosti ekoloških indeksa korovske flore,ukazuje da je analizirano stanište: umereno vlažno (F - 2,48),neutralno do slabo alkalno (R – 3,24),eutrofno-mezotrofno (N – 3,62),sa srednjim sadržajem humusa (H – 3,05),dobrom aerisanošću (D – 3,76) i nezaslanjeno (S- - 85,72%).U korovskoj flori dominiraju termofilne biljke (T - 3,95) prilagođene punoj svetlosti,ali i izvesnoj zasenjenosti (L – 3,95) i umereno kontinentalnim klimatskim uslovima (K - 3,09).Biljnogeografskom analizom utvrđena je dominacija taksona širokog rasprostranjenja (80,95%,17 taksona) što je odlika korovske flore.S obzirom da pri organskoj poljoprivredi sinuziju korova i gajene biljke treba uravnotežiti,najveći problem je upravo tehnologija kontrole korova.Zato je poznavanje korovske flore,njenih bioloških i ekoloških karakteristika neophodan preduslov u izboru metoda njene kontrole i suzbijanja.
关键词：Brassica oleracea L.var.gongylodes L.;organic productuon;ecological and plantgeographic analysis.
