This thesis follow up influence of fertilization on yield and oil content of oilseed rape (Brassica napus L.). There were used fertilizers based on ammonium sulfate in the regeneration (BBCH 26, spring) and production fertilization (BBCH 31) during vegetation phase of oilseed rape. The issue was solved as a two-year small-plot field experiment carried out in the vegetation seasons 2016/2017 and 2017/2018 at the Field Experimental Station in Žabčice. The following variants were included in the experiment: Control (CAN), Ammonium sulfate (AS), Ammonium sulfate with boron (AS + B), Ammonium sulfate with nitrification inhibitor (AS + IN). Each fertilization variant was applied either as regenerative fertilization (BBCH 26) or first production fertilization (BBCH 31). The yield of seeds and also their oil content was significantly influenced by the vegetation season. Yield in the vegetation season 2017/2018 were higher by 41 % than in the vegetation season 2016/2017 because of weather conditions. The oil content was higher by 4 % in the vegetation season 2017/2018. The yield of seeds and also their oil content were not significantly influenced by the fertilization variant or by the vegetation phase of application. The highest average yield 4,23 t/ha was variant Control. The Control also was the highest average oil content of 40,2 %. High temperatures during both years reduced the efficiency of nitrification inhibitor. Fertilization with a boron-containing fertilizer had no effect because of drought and pH.
| Identifer | oai:union.ndltd.org:nusl.cz/oai:invenio.nusl.cz:427902 |
| Date | January 2019 |
| Creators | Vrtěl, Petr |
| Source Sets | Czech ETDs |
| Language | Czech |
| Detected Language | English |
| Type | info:eu-repo/semantics/masterThesis |
| Rights | info:eu-repo/semantics/restrictedAccess |
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