EN
In 2007–2008 four semi-field experiments were conducted to estimate the biological activity of mezotrione + nicosulfuron (Elumis 105 OD) applied alone and in tank-mix with other herbicides in maize. The treatments were carried out at the 3–4 leaf stage of maize. The results showed very good effect of treatments against Centaurea cyanus, Chenopodium album, Galium aparine, Polygonum convolvulus, Solanum nigrum, Viola arvensis, Amaranthus retroflexus, Echinochloa crus-galli, Galeopsis tetrahit, Geranium pusillum, Polygonum lapatifolium and Sinapis arvensis. In some experimental treatments slight injury like growth inhibition was observed. Yield of maize cobs after the application of mezotrione + nicosulfuron mixture with lower doses of other herbicides was significantly higher than from the untreated plots. The obtained results can be useful in practice for the benefit of maize growers.