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Vliv digestátu na půdní sorpční komplex kambizemě
Doležalová, Eliška
The aim of this bachelor thesis is to determine the influence of applied fertilizers, specially digestate, on properties of soil sorption complex. The field experiment was established in 2014 at the plant research centre in Vatín near Žďár nad Sázavou. The vegetation cover was based on permanent grassland, maize monoculture and Norfolk cropping system. Types of fertilizers: anaerobic digestate, mineral (industrial) fertilizers and manure. The full fertilizer dose was 150 kg N / ha; P and K content are the same for all fertilizer variants. I determined hydrolytic acidity, base cation content, cation excange capacity and base cation saturation according to Kappen for samples from depths of 0 -10 cm and 10 - 20 cm.The application of digestate reduces hydrolytic acidity, increases the content of cations, cation exchange capacity, and the degree of saturation of sorption comlpex. These changes occur only at a depth of 0 - 10 cm.
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Vliv technologie kompostování na kvalitu kompostu
PLUCEK, Tomáš
This bachelor thesis deals with the effect of composting technology on the quality of compost. The goal was to determine the CEC (cation Exchange capacity) according to Sandhoff and to create a proposal for the optimal composting technology. It is possible to find the right parameters for creating the right conditons of the composting proces. Samples were taken from three selected plants, from the composting plant Fertia s.r.o., from the Petrůvky, ESKOT T s.r.o. Třebíč composting plant and from composting plant Dubinka AGRO 2000. This thesis also describes the features of the kompost, the nature of the correct composting procedures and composting technology. In order to objectively assess the quality of the composts, the Sandhoffs method of stating the cation exchange capacity was used.
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Compost accelerator to composters and garden composts
HÁJEK, František
The purpose of this paper is to research and suggest good-quality compost accelerators that could be effectively used in the garden composts. The additive eliminates the shortage of the input pulverized grass matter which is being composted. This thesis also describes the features of the compost, the nature of the correct composting procedures, and the legal implications to the production of the composting process. This paper elaborates the efficiency of the compost accelerators that are available within the home market and abroad. An important component of my accelerator is magnesium from the Dolomites limestone distributed by the "HASIT" company which positively affects the process of humification. The experiment of compostation with this type of accelerator took place on the pulverized grass matter. In order to objectively assess the quality of the composts, the Sanhoff´s method of stating the cation exchange capacity was used. During this experiment, the cation exchange capacity increased by 22% in the sample where the accelerator has been used, as compared to the sample where only the composted grass matter was present. Based on the results gathered, it is feasible to conclude that the suggested accelerator does have a significant impact on the composting of the grass matter. Due to this fact, it is strongly recommended to conduct a further research on the composition of the compost accelerators.
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