Vliv dusíkatých hnojiv s humáty na výnos a kvalitu řepky ozimé

The goal of bachelor´s thesis effect of nitrogen fertilizers with humates on the yield and quality of winter rape was to make a literature summary focused on humic substances, their mixture with fertilizers and nutrition of winter rape. In practical experiment evaluate the influence of addition of humic substances to nitrogen fertilizers with sulphur, sulphur and magnesium to be more precise to the yield of winter rape seeds and oil production. Patch field tests were done on experimental stations of Mendel University, Žabčice u Brna (179 m a. s. l.) and Vatín u Žďáru na Sázavou (535 m a. s. l.) in the year 2015/2016. Several variations were included in these experiments, with fertilizes DASA 26-13, MAGNISUL and DASAMAG and fertilizes with addition of humic substances DASA H, MAGNISUL H and DASAMAG H. Mentioned fertilizers were applied as regenerative fertilization. Yield of winter rape seeds was statistically higher on site Žabčice. Addition of humic substances did not significantly manifest on yield. Only variation with MAGNISUL H had 11 % higher yield than MAGNISUL. Differences in achieved oiliness of seeds were not statistically significant