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Chemical Properties of Flue Gas Desulphurization Gypsums from Different Energy Sources
Kroulíková, S. ; Mercl, F. ; Száková, J. ; Perná, Ivana ; Tlustoš, P.
There were compared flue gas desulphurization gypsums (FGDGs) from four different power plants in the Czech Republic on chemical properties (pH, total content of nutrients and risk elements) and then was assessed their potential for utilization in agriculture as fertilizer without any risk to the environment. According to our results, the FGDGs represent an important possible source of sulphur (17.8 – 19.0 %) and calcium (23.0 – 30.2 %) for reduction of their deficit in the soil. However, contents of arsenic and of mercury in three of the tested FGDGs not fulfil the limit values for fertilizers. In the future, the remaining FGDG is thus necessary to evaluate for its fertilizing effects in model and field conditions.\n\n
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The organic farming in a study region of the Czech Republic
Repaský, Tomáš ; Zímová, Kateřina (advisor) ; Mercl, Filip (referee)
This diploma thesis deals with the topic of ecological agriculture. The first part of the thesis introduces the topic and explains the basic terms of ecological farming. It is also focused on the development of ecological agriculture in the Czech Republic and in Europe. The basic principles, legislation and general labelling of organic food is also describes in there.
The second part of the thesis deals with the ecological agriculture in selected region of the Czech Republic. The region has been analysed based on the structure of agricultural land resources and as well as the structure of farms. The questionnaire survey has been used and provided to certain eco-farmers. The data, about the structure of cultivated plants and animal husbandry, their production and sales, costs of eco-farming and the economic situation of farms in general, has been collected and processed. In the final part of the thesis, the fundamental problems, which eco-farmers have to face, are mentioned, and the possible solutions are suggested.
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