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Výnos a kvalitativní parametry biomasy u různých meziplodinových směsí
Jančová, Silvia
The diploma thesis dealt with the issue of growing intercrop mixtures. The evaluation took place during the years 2021 and 2022 on the land of the agricultural company DVP AGRO a.s. in the conditions of southern Moravia. From the two-year results, it was found that the production of above-ground biomass in the dry state was in the range of 5.34-6.91 t.ha-1. In the species-rich mixture (a total of 13 species), radish had a dominant representation, on the other hand, leguminous small-seeded species such as cress, Egyptian clover and Alexandrian clover had minimal to no representation in the evaluated biomass. The qualitative analysis of plants shows that the amount of individual nutrients in the biomass depends on the species composition of the mixture and the representation of individual species. The content of C and N differs depending on the above-ground and underground biomass, but also on the length of the growing season. The C/N ratio ranged between 14-19 for above-ground biomass and 18-26 for underground biomass. By adding above-ground biomass, we supply approximately 160-172 kg.ha-1 N, 70-80 kg.ha-1 Ca, 12-21 kg.ha-1 P, 135-229 kg.ha-1 K a 15-19 kg.ha-1 Mg. The results of measuring soil moisture dynamics show that intercrop biomass did not take more water from the soil compared to the variant without intercrops, but on the contrary protected it from non-productive evaporation, which occurs on bare soil, through the involved vegetation.
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Hodnocení vlivu podnožové odrůdy na novou PIWI odrůdu Savilon
Vydařelý, Petr
This thesis deals with the influence of the rootstock variety on the new PIWI variety Savilon. The history of the rootstock is explained in the introduction where is also described the rootstock vineyard. It is explained here how the cuttings earmarked for grafting are acquired. This work also describes the general properties of the examined rootstocks, their sensitivity to the active lime content and their soil requirements. Part of the work also deals with physiological properties between graft and rootstock. In the theoretical part there are described the most important grapevine acids, sugars, assimilable nitrogen, micro and macro elements affecting its growth. In the practical part of the thesis, the obtained and measured values from the performed experiments are analyzed and statistically evaluated. From the measured values, Savilon found the best qualitative and quantitative results on the Fercal and Paulsen 1103 rootstocks. Furthermore, it is recommended to grow this variety on Kober 125 AA, Kober 5 BB and SO4 rootstocks. Savilon is not recommended to grow on the Börner rootstock.
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