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Hodnocení ekonomické efektivnosti pěstování smíšených kultur vojtěšky seté a trávy
Richterová, Nikola
The aim of this study was to compare the yields of mixed crops of sown alfalfa and grasses depending on variety, cutting, ratio (alfalfa to grass rows) and year. Small-plot experiments at the Troubsko site, and field experiments at Vatín were evaluated. The quality of forage was also evaluated, namely crude fibre and crude protein content. The yields of the crops decreased with each successive cutting (p<0.05). With regard to green matter yields, the most advantageous is the cultivation of sown alfalfa in a mixed culture with alfalfa sorghum, where the ratio of alfalfa to sorghum rows is 3:1. For dry matter in the same ratio, a combination with festulolium (Hykor) is better. The crude fibre content of the mixed cultures ranged from 20.73% to 27.5% and the crude protein content ranged from 9.82% to 18.32%. It was found that the protein content was directly proportional to the amount of alfalfa in the crop.
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Zvyšování nutriční hodnoty píce mezirodových hybridů Festulolium uplatněním mimokořenové aplikace selenu
Tobolíková, Hanka
This thesis “Increasing the nutritional value of intergeneric hybrids of Festulolium for fodder by non-root application of selenium” describes a one-year study on the reactions of four varieties of Festulolium to biofortification with selenium in a small plot. All variants of the fodder were fertilized at a standard nitrogen (N) dose of 60 kg.ha-1, and selenium was applied foliarly as Na2SeO3 in at an offshoots phase at 16 g.ha-1 and 32 g.ha-1. Non-root applications of selenium, especially at a lower doses of 16 g ha-1 is statistically proven to be an appropriate measure to increase yield and increase selenium content and nutritional values (dry matter, nitrogenous substances, fibre, WSC and NEL) in fodder of both loloid and festucoid types of Festulolium. The most effective influence on clayey hybrids (Festulolium braunii) was exerted through spraying selenium onto the leaves at a dose of 16 g.ha-1, while a dose of 32 g.ha-1 exerted a greater effect on fescue (Festulolium krasanii). Biofortification of the observed fodder plant species by selenium was proven to be a valid means of enriching fodder with a consequent positive effect in the food chain.
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Hodnocení kvality siláží vyrobených z pícnin čeledi lipnicovitých
Richterová, Bára
The thesis is focused on the assessment of the quality of the fermentation process in various grass species. In the literary part we characterize grasses of the family Poaceae. The next part is devoted to the conservation of silage grasses with possible threats to ensilage and the use of silage additives in production. In the practical part, a total of 12 grass samples were monitored. They were founded in two variants, fertilized and non-fertilized with nitrogen, treated and untreated with silage additive. Grasses were harvested from the microsilage vessels after 60 days and analyzed for selected parameters. The results were evaluated by graphs. Ammonia, pH, LA, AA, biogenic amines were further processed by ANOVA. Using the values from the analyzes, we evaluated the quality of the fermentation process, when the samples of festulolium, festulolium N were the best, among which there was a statistically significant difference at 95 % confidence level. In the analytical evaluation the worst sample of the lobed fur without treatment was found to have poor quality silage fermentation. It also contained the most biogenic amines but there were no statistically significant differences between the samples (p <0.05). For samples of the lobed foot treated with a chemical additive, we can conclude that the use of the chemical preservative SoftAcid improved the quality of the fermentation.
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Hodnocení kořenového systému a infiltrační schopnosti půdy u vybraných druhů trav
Dostál, Jiří
Lolium, Festuca species, and xFestulolium interspecies hybrids are widely used in agriculture, these species are considered the optimal grass species for intensive forage production. Lolium species are susceptible to abiotic stress, which has an increasing trend with the forthcoming climate change. Therefore, Festulolium interspecies hybrids have been bred, which have suitable parameters (drought resistance, ability of roots to penetrate through the compacted soil layers, better nutrient availability, etc.) to ensure a quality production and performance of other ecosystem services. Root biomass and root architecture are critical for meeting a number of ecosystem functions. In this work, I focused on the evaluation of the root system and the comparison of the soil infiltration capacity in selected Graminacae species. To compare selected parameters, grasses were grown in tubes filled with sand. Lolium multiflorum (cv. DALLARA), Festuca pratensis (cv. HYPERBOLA), Festulolium braunii (cv. HOSTYN), Festulolium krasanii (cv. HYKOR and HIPAST), Festulolium loliaceum (cv. PRIOR) and Trifolium pratense (cv. CALLISTO) species have been tested. The parameters evaluated were following: plant length, number of tillers, maximum rooting depth, total root length, root volume, root surface, root length in single thickness categories, dry matter of above-ground and underground biomass. The highest values were measured in Lolium multiflorum (cv. DALLARA) and in Festulolium braunii (cv. HOSTYN). Another part of the work was the sampling and evaluating roots from the soil on experimental plots in Vatín. In this measurement, Festuca rubra (cv. GONDOLIN) and Festulolium krasanii (cv. HYKOR) were selected. There were not found statistically significant differences in the total root length, root surface and root volume parameters. Festulolium (cv. HYKOR) had significantly stronger roots in the comparison to Festuca rubra. The last part of the research was the comparison of the soil infiltration capacity in these species: Festuca rubra (cv. GONDOLIN) and Festulolium (cv. HOSTYN, PRIOR and HYKOR). The highest infiltration capacity was measured on the Festulolium loliaceum (cv. PRIOR) plot.
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Vliv trávníkového druhu a ošetření na kvalitu nově založených sportovních trávníků
Daněk, Filip
The subject of this thesis was to assess and evaluate the influence of the relevant turf species and maintenance on the quality of the newly established sports turf. The experiment was founded into the small plots for free repetitions. The factors wich were chosen for evaluation were the degrees of grass species -- perennial ryegrass (Lolium perenne L.), kentucky bluegrass (Poa pratensis L.) and festulolium. The part of evaluation was also the degrees of treated and untreated. For the quality assessmenent of turf species was evaluated the overall condition of the vegetation, state of health of vegetation, regrowth of vegetation and coverage of weeds in vegetation. The analyzes shows that during the growing season under the influences of weather condition, way of maintenance (verticutting, fertilization, mowing) and the occurrence of adverse effects. The vegetation of perennial ryegrass (Lolium perenne L.) reacted best of all species. Lawn turf of this species showed the best performance in terms of quality of the newly established sports turf.
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