|
|
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.
|
|
|
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.
|
|
|
Píce jako primární zdroj selenu v potravním řetězci
Šišková, Daniela
Selenium (Se) is an essential mineral nutrient for animal and human growth. Defici-ency in this element is a worldwide nutrition problem. Lolium perenne and Trifolium pratense were enriched by selenium using foliar application. It is a way to enrich the feed of animals and human nutrition through animal products. Amounts of 0, 2, 4 and 20mg of Se m-2 were applied both as sodium selenate and as sodium selenite in water. Results showed that selenium concentration in forage was significantly enhanced dose dependently. For Lolium perenne at the highest concentration used, reaching concent-rations of selenium in selenate 3,1371mikrogramm/mg and selenite 5,5503mikrogramm/mg. For Trifolium pratense at the highest concentration used, reaching concentrations of selenium in sele-nate 11,6837mikrogramm/mg and selenite 4,939mikrogramm/mg. Foliar application of selenium was proven to be a good way to increase the selenium content of forage, but the assimilation process of selenium was simpler with selenate for Trifoilum pratense and with selenite for Lolium perenne.
|
|
|
Rust problems on selected forage grass species
HOSPODÁŘSKÝ, Radek
The object of this diploma essay is to evaluate selected breeding material sensitivity to attack of crown rust and grass rust. Research was realized in cooperation with Breeding Station Větrov, located in altitude 630 meters above sea level, district of Tabor. Attack of the plants was rated according to scale used by UKZUZ1-9. During vegetation period attacked parts of the plants were collected for specific rust diagnosis. The results were evaluated using statistical data elaboration.
|
|
| |
guest ::
