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Regenerační hnojení řepky ozimé dusíkatými hnojivy se sírou
Špaňhelová, Klára
This baclehor thesis examines the influence of the regenereation nitrogen fertilization with sulphur on yield and oiliness of winter oilseed rape.The experiment was perfomed in year 2014/2015. The experiment was established as a small plot field experiment in Vatín.The experiment icluded following variants of fertilizatoin: 1. unfertilized, 2. LAD (ammonium nitrate with dolomite) + LAD, 3. ENSIN (ammonium nitrate + ammonium sulphate with nitrification inhibitor) 100 %, 4. ENSIN 80 %, 5. ENTEC (ammonium nitrate + ammonium sulphate with nitrification inhibitor) 100 %. 6. ENTEC 80 %, 7. DASA ( ammonium nitrate + ammonium sulphate) + DASA, 8. LAD + ENSIN. Variants of fertilization had not statistically signifiant effect on the rape yield.The highest result was achieved on variant ENTEC 80 % with yield 2,7 t/ha. This variant provided higher yield by 29,1 % than unfertilized variant.The variant ENTEC 80 % provided higher yield by 26,7 % than variant LAD + LAD. The fertilizing had not statistically signifiant effect on the rape seeds oiliness. The highest oil content was achieved unfertilized on variant with oiliness 47,4 %.
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Stabilizované močoviny ve výživě řepky ozimé
Tuček, Tomáš
The aim of this work was to evaluate the effectiveness of stabilized nitrogen fertilizers in the recovery fertilization of winter oilseed rape on the yield and oil content, along with economic evaluation. The experiment was established in the year 2012/2013 in the form of small-plot experiment in Žabčice by Brna. For experiment were chosen the following variants of fertilization: 1. Unfertilized, 2. Split urea, 3. One-fase urea, 4. UREAstabil (urea + urease inhibitor), 5. ALZON 46 (urea + nitrification inhibitor). Fertilizer was applied in the spring at full dose 194 kg ha-1 of nitrogen. These variations of fertilization had no significant effect on seed yield or oiliness. Only variants, which used a fertilizer UREAstabil, had increased yield compared to non-fertilized variant. Oiliness, however, for all variants is almost the same. Coefficient of economic efficiency was less than one in all variants.
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