EN
A field experiment was conducted in 2007 to 2009 at Experimental Station Brody of Poznań University of Life Sciences to determine the effect of tillage, including strip tillage, conventional tillage and no tillage on weed pressure in corn. Strip tillage implementation included coulter, shank, covering disks and rolling basket. Cultivated straps were 35 cm wide and 20 cm deep at fall and spring strip tillage, 35 cm wide and 10 cm deep at shallow spring strip tillage and about 10–15 cm wide and 20 cm deep at narrow spring strip tillage. Conventional tillage was performed in the fall or spring with moldboard plow at a depth of 20 cm. Weed density for individual species was recorded prior postemergence herbicide application. Weed emergence was over eight times lower in strip tillage compared with conventional tillage with emergence patterns in strip tillage generally similar to the no tillage. Main weed species were Chenopodium album and Echinochloa crus-galli and this weeds density the most depended on tillage.