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Stabilizovaná hnojiva na bázi DAM 390 ve výživě pšenice ozimé
David, Petr
The bachelor thesis examines the influence of stabilised nitrogenous fertilizers on yield of grain and qualitative characteristics of winter wheat. The experiment was solved in year 2017/2018 in two locations. These locations were in Žabčice near Brno and Vatín near Žďár nad Sázavou. The experiment contained five following variants: 1. LAD (amonium nitrate with dolomite) + LAD + UAN (ammonium nitrate with urea), 2. LAD + UAN, 3. LAD + UAN + IN (nitrification inhibitor), 4. LAD +UAN + IU (urease inhibitor), 5. LAD + UAN + IN + IU. Variants of locations and fertilization had not statistically significant effect on the yield of grain, content of N-substances and sedimentation value. The highest yield of grain reached variant LAD + UAN with 8,93 t/ha. The highest content of N-substances was reached on Žabčice’s variant LAD + LAD + UAN with 16,5 %. This variant achieved the highest sedimentation value too. It was 60 cm3. Variants with inhibitors in Žabčice did not reached higher values than variants without inhibitors on observed parameters because of heat and drought. In Vatín were more successful variants with inhibitors specifically variant LAD + UAN + IU on all observed parameters.
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Vliv inhibitoru ureázy v hnojivu na výnos a kvalitu brambor
Juhás, Petr
This diploma thesis deals with the influence of fertilizer with urease inhibitor on filed and quality of potatoes on table potato varieties. Varieties selected for field trials were selected according to the different length of the growing season. In a field experiment was used variety Karin, which is among the early varieties and Red Anna, which is among the semi-early variety. The results were from a two-year field trial, which were established in 2013 and 2014 on the experimental field of station school farm of Mendel university in Žabčice.
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Stabilizované močoviny ve výživě pšenice ozimé
Ruška, David
The aim was to assess the effects of stabilized ureas on the nutritional status of winter wheat crop during the growing season, yield of grain and the qualitative characteristics of grain - bulk density, the content of N-substances, gluten content and sedimentation value. The results were then compared with the non-fertilized variant and with the variant with fertilizers without inhibitors. The experiment was conducted in the form of a small-parcel field trial at ŠZP in Žabčice in the farming year 2012/2013. Examined were the effects of seven following variants: 1. unfertilized variant, 2. fertilizer LAD applied in two dose, 3. urea applied in two doses, 4. urea applied in one dose, 5. fertilizer with urease inhibitor UREA Stabil, 6. urea with nitrification inhibitor ALZON 46, 7. combination of fertilizers ALZON 46 and UREA Stabil in ratio 1:1. The effects of fertilized variants on values of N-tester clearly dominate. Similarly, this applies also for the content of N-substances, gluten content and sedimentation value. In case of the yield, the results were not so clear. Between the highest and the lowest value (unfertilized variant) the difference was approximately 1 t/ha. Demonstrated was only the positive effect of nitrogen fertilization on increase of grain yield. The values for bulk density are very similar for all variants. Effects of all nitrogen fertilizers on the given characteristics were very balanced. Slightly better results were reached for fertilizers ALZON 46 and ALZON 46 with UREA Stabil (1:1).
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