National Repository of Grey Literature 4 records found  Search took 0.00 seconds. 
Vplyv pridania zuhoľnatených rastlinných biomás na vermikompostovanie
Gundová, Zsuzsanna
Diploma thesis presents the issue of the impact of the addition of charred plant biomass for vermicomposting. The theoretical section describes the definition of biochar, its production, and application benefits to the soil, and other purposes. In other section, devoted to vermicomposting, there is defined the methodology of domestic vermicomposting. The chapter which is devoted to the own experiment is based on the hypothesis that biochar slows down the process of vermicomposting, reduces odor and emissions produced during the process, and that the combination biochar with vermicompost would be a suitable alternative fertilizer. During the experiment, two bins for vermicomposting were used. Biodegradable waste and biochar were added to the first one, and biodegradable waste were added to the second one. The same type and amount of substrate were added to the bins, and they were placed under certain conditions. The difference was only in the addition of biochar. During the whole process, vermicomposting diversity and the resulting product were studied. Vermicompost was evaluated by the available methods.
\kur{In-situ} available phosphorus in forest soils of Bohemian forest lakes watersheds
ČAPEK, Petr
The aim of the study was to test ion exchange resin (IER) bag method for measurement of forest soil phosphorus availability. P-PO4 sorption and elution efficiencies of ion exchange resin AsenXnp (Purolite) were tested. The results showed nearly 100% efficiency of P-PO4 sorption. Average elution efficiency after repeated elution on a glass column was 87 % (each elution step 50 ml 2 % NaOH, 300 ml in total). The amount of available phosphorus was determined in-situ using IER bag method in the litter and organic soil layers of Plešné and Čertovo lakes watersheds. Amount of available phosphorus was 3.6 times greater in soils of Plešné watershed compared to Čertovo watershed.

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