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Vliv aditiv na kvalitu a zdravotní bezpečnost siláží jetelovin
Florianová, Viola
The aim of this diploma thesis was to compare quality of protein silages made of lucerne (Medicago sativa L.) (there were used two varieties Holyna and Tereza) and red clover (Trifolium pratense L.) (tetraploid variety Amos and diploid variety Spurt) ensiled with low dry matter content 16–20 %. Experimental parcels were founded in 2013. Plots of lucerne were harvested for three following years, plots of red clover were harvested for two following years. Green feed was ensiled into laboratory microsilos directly after harvesting. The silage quality was compared within species and variety and within different silage additives. There were analyzed contents of organic nutrients, digestibility in green material and organic nutrients, digestibility, quality of silage extracts, losses and amount of silage effluents in silages. Silages made of red clover had significantly (p <0,05) lower pH, ammonia content, content of butyric acid and proteolysis level compared to lucerne silages. Amos variety had also significantly higher content of lactic acid compared to both lucerne silages. The effect of chemical silage additive on silage quality was significant. Silages treated with chemical additive had significantly lower (p <0,05) pH, ammonia content, content of acetic acid, ethanol and level of proteolysis compared to untreated variant and variant treated with biological additive.
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Vliv organické výživy s využitím mořských řas na výnos brambor
Florianová, Viola
Theoretical part of this bachelor thesis summarizes basic facts about breeding and fertilization of potato plant. In practical part there is evaluated effect of several fertilizers made of seaweed (AlgaSoil, Alga 300, SoftGuard, CaBoron, ProBoron, Rootmost) on yield of two varieties of potato with different length of growing season Arlet and Dicolora. Small-plot field trial was founded in April 2015 at experimental field station of Mendel University in Žabčice near Brno. Achieved results were affected by unfavorable weather, especially by drought at the beginning of tuberisation. There were not noticed any statistically significant influences of yield of any trial variant. There was small increase in yield (4 %) in case of Dicolora variety fertilized by AlgaSoil. So the achieved results have to be proved in coming years.
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