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EN
In 2005–2009 in Experimental Station of Poznań University of Life Sciences at Przybrodaresearch was performed on the influence of Horizon 250 EW application in the autumn. Fourfactorial experiment was carried out in four replications. The first factor were two sowing dates of oilseed rape (optimal between 20–25 August) and delayed (by ten days); the second factor were two varieties Californium and Electra; the third factor – autumn application of triazole fungicide Horizon 250 EW with control object; the fourth factor was sowing density – 50 and 100 seeds per one square meter. In the experiment were evaluated: plant density, autumn habitus and oilseed infestation by fungal diseases. The application of Horizon 250 EW as a rule had a favourable influence on plant habitus of overwintering, considering the interactive system of sowing date, density and variety. Under conditions of mild winters, there was no impact of fungicide on the overwintering of rape. The application of Horizon 250 EW effectively reduced autumn leaves’ infestation by fungal diseases, especially in conditions conductive to high intensity of their occurrence.
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