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Srovnání účinnosti vybraných systémů hnojení na produkci a kvalitu pšenice ozimé
Horký, Jiří
The aim of this diploma thesis was to evaluate the influence of different fertilization options on the yield and quality of winter wheat grain and the profitability of its cultivation. Among the qualitative parameters, the content of nitrogenous substances, gluten and sedimentation value were monitored. The research took place in the form of a one-year semi-operational field experiment in the Jabloňov area, Vysočina. The following five fertilization variants were included in the experiment: LAV as control, urea, DASA (ammonium nitrate with ammonium sulfate), Urea stabil (urea with urease inhibitor) and ENSIN (ammonium nitrate with ammonium sulfate and nitrification inhibitor). The results show that the fertilization variants had no effect on the size of the yield. The effect of nitrification and urease inhibitors and sulfur fertilizers on grain quality parameters was also inconclusive (compared to the LAV control). A significant increase in quality parameters was noticed when comparing fertilizers with inhibitors and their equivalents without inhibitors. The ENSIN variant contained 4,3 % more nitrogenous substances and 8,3 % more gluten than the DASA variant. The Urea stabil variant contained 8,2 % more nitrogenous substances, 9,5 % more gluten and achieved a 12,2 % higher sedimentation value than the urea variant. Economically, the DASA variant turned out to be the best option. Fertilizers with inhibitors had a rather negative effect on the economics of cultivation
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Podzimní aplikace stabilizovaného dusíkato-sirného hnojiva u řepky ozimé
Vrtěl, Petr
The aim of this bachelor thesis was to evaluate the efficiency of autumn fertilization technology with stabilized nitrogen-sulfur fertilizer (ENSIN) in oilseed rape. The experiment was established in the economical year 2014/2015 in the form of a small-plot field experiment on the fields of the School farm in Žabčice. Evaluation criterions were seed yield and oil contend of oilseed rape. The following variants of the ENSIN fertilizer application were included in the experiment: variant 1 in the autumn was not fertilized, variant 2 was in the autumn fertilized, variant 3 fertilized in the autumn later and variant 4 fertilized in autumn later and in spring at the beginning of elongation . The variants of fertilization were statistically inconclusive in seed yield and oil contend. Highest yield had variant 4.
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Ovlivnění výnosu a olejnatosti semene řepky ozimé použitím stabilizovaných močovin
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 the economic evaluation in 2013-2015. The experiment was established in the year 2013 in the form of small-plot experiment in Žabčice by Brno. The following variants of fertilization were chosen for the experiment: 1. Unfertilized, 2. Split urea, 3. One-phase urea, 4. UREAstabil (urea + urease inhibitor), 5. ALZON 46 (urea + nitrification inhibitor). The variant with Split urea was applied in the spring in the regeneration and in two production fertilization at full dose of 194 kg ha-1 of nitrogen. We have taken ground samples for a better evaluation of influence of applied fertilizers. These variations of fertilization had no significant effect on seed yield or oiliness. There were increase of yield with fertilized variants in compare with non-fertilized, the best was the split urea fertilization. There was a higher yield and oiliness for ALZON 46 for stabilized fertilizers. However, the oiliness was rapidly going down for all fertilized variants in 2014 and 2015.
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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 termínu aplikace stabilizovaného dusíkato-sirného hnojiva na výnos a olejnatost řepky ozimé
Lančová, Taťána
This thesis follow up assessment effect of fertilizing with stabilized nitrogen fertilizers, which contain sulphur, on yield and oiliness of winter oilseed rape. Thesis examines, if it is more favourable to use this kind of fertilizer than to use common one and how it affects yield and oiliness of seed. For research were founded a small-plot three-year field trials at experimental stations in Žabčice and in Vatín. There were used the following variants: 1. unfertilized, 2. LAD + LAD, 3. DASA + DASA, 4. ENSIN and 5. LAD + ENSIN. Fertilizers LAD (ammonium nitrate with dolomite; 27 % N) and DASA (ammonium nitrate with ammonium sulphate; 26 % N + 13 % S) were used in divided application and in the second production fertilizing there was added 150 l.ha-1 DAM 390 (ammonium nitrate with urea; 30 % N). On another variant there was once applied dose of ENSIN (ammonium nitrate with ammonium sulphate with nitrification inhibitors). ENSIN was also added to LAD, when there was done first nitrogen dose with LAD and second nitrogen dose with ENSIN, which comprised around 60 % of total dose of nitrogen. Total dose of nitrogen applied to the experimental plots was 194 kg.ha-1. For individual variants no statistically significant effect of fertilizers with seed yield inhibitors was found. The DASA + DASA variant yielded 2,80 t.ha-1. LAD + ENSIN (2,75 t.ha-1), ENSIN (2,72 t.ha-1) and LAD + LAD (2,67 t.ha-1) variants were similar. The lowest yield then released a non-fertilized variant with a yield of 2,54 t.ha-1. Stabilized fertilizers did not show a statistically significant effect on the oiliness of the seed. The highest oiliness was achieved by the non-fertilized variant (42,91%), and it showed good oiliness of the use of LAD + ENSIN fertilizers (42,44%). For other variants ENSIN (42,27%), LAD + LAD (42,18%) and DASA + DASA (42,16%) a similar seed oiliness was found.
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Různé termíny jarní aplikace stabilizovaného dusíkatého hnojiva se sírou u řepky ozimé
Lančová, Taťána
This bachelor thesis is about assessment effect of fertilizing with stabilized nitrogen fertilizers, which contain sulphur, on yield and oiliness of winter oilseed rape. This thesis examines, if it is more favourable to use this kind of fertilizer than to use common one and how it affects yield and oiliness of seed. There were founded a small-plot field trials at experimental stations in Žabčice and in Vatín during years 2014 and 2015. There were used the following variants: 1. unfertilized, 2. LAD + LAD, 3. DASA + DASA, 4. ENSIN and 5. LAD + ENSIN. Fertilizers LAD and DASA were used in divided application and in the second production fertilizing there was added 150 l.ha-1 DAM 390. On another variant there was once applied dose of ENSIN. ENSIN was also added to LAD, when there was done regenerative fertilization with LAD and production fertilization with ENSIN, which comprised around 60 % of total dose of nitrogen. Total dose of nitrogen applied to the experimental plots was 194 kg.ha-1. There was not proved any statistically significant effect of fertilizers with inhibitors on yield in Žabčice. The highest yield was reached by variant fertilized by LAD + LAD (2,39 t.ha-1) and variant DASA + DASA (2,34 t.ha-1). There was discovered statistically significant effect on oiliness of oilseed rape. The highest value was reached by unfertilized variant, which had 43 % oiliness. In Vatín, there was not proved any statistically significant effect of stabilized fertilizers on yield of oilseed rape. The highest yield was reached by variant fertilized with LAD + ENSIN (2,48 t.ha-1) and also ENSIN (2,31 t.ha-1). There was not proved any statistically significant effect of fertilizing on oiliness. The highest value was reached by unfertilized variant and variant LAD + LAD (47%).
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Ovlivnění výnosu a kvality pšenice ozimé použitím stabilizovaných dusíkatých hnojiv se sírou
Minařík, Petr
This thesis examined the effects of applied stabilized nitrogenous fertilizers with sulphur (ENSIN and ENTEC 26) and nitrogenous fertilizers without inhibitors (DASA) in the nutrition of winter wheat. The effect of various forms of stabilized nitrogenous fertilizers on the yield and qualitative parameters of winter wheat was studied during a three-year vegetative experiment. The experiment was carried out in the form of a small plot experiment in two localities (Žabčice near Brna and Vatín near Žďáru nad Sázavou). The experiment included the following six variants of fertilisation: 1. unfertilised control, 2. DASA + DASA (ammonium nitrate and ammonium sulphate) , 3. ENSIN, 4. ENTEC 26, 5. LAD (ammonium nitrate with dolomite) + ENSIN, 6. LAD + ENTEC 26. On all fertilized variants there was a significant increase in yeald compared to the unfertilized control (an average of 22.4 to 37.3 %). The highest average yield for three years amounted variant LAD + ENSIN in the locality Vatín and Žabčice. The maximum average yield 7,39 t/ha reached the option LAD + ENSIN in the locality Vatín and 7,61 t/ha in the locality Žabčice. This variant also achieved the highest content of N - substances and sedimentation value. Only in bulk density was better option LAD + ENTEC 26, however, there was no significant difference. Variant LAD + ENSIN was effective also in terms of economic efficiency.
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Stabilizovaná dusíkatá hnojiva se sírou ve výživě pšenice ozimé
Tržil, Marek
The aim was to compare the effects of stabilized ureas including sulphur (in different dosing) with fertilizers without inhibitors on nutrition of winter wheat crop. There were a five differential variants: 1. ALZON 46 (urea with inhibitor of nitrification) + ammonium sulfate (1:1), 100% dose, 2. ALZON 46 (urea with inhibitor of nitrification) + ammonium sulfate (1:1) 80% dose, 3. ALZON 25 -- 6 S, 100% dose (fertilizer with nitrification inhibitor involving 25 % nitrogen and 6 % sulphur) 4. ALZON 25 -- 6S, 80% dose, 5. Urea + ammonium sulfate. I examine the effects of these variants on nutrition of crop, yield and qualitative characteristics of grain. The experiment was realized on small-parcel field at ŠZP in Žabčice in year 2012/2013. The variant ALZON 25 -- 6 S 80% dose reached the worst results for the gluten content, content of N-substances and sedimentation value. The variant Urea + ammonium sulfate had the lowliest value of a bulk density. The best results were reached for fertilizer ALZON 46 (urea with inhibitor of nitrification) + ammonium sulfate in ratio 1:1 (100 % dose) for parameters such as value of N-tester, yield of grain, sedimentation value, content of N-substances and gluten content.
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