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This thesis deals with the effects of triazole fungicides on plant growth and development and accessibility of nutrients from the soil, using case studies with the active substance penconazole (Penk). For this work, it were established several objectives, which should create a comprehensive picture of the potential impact of Penk, triazole fungicide, on plants and soil. As the objectives of the work were determined as followings: find out (I) which affects the addition of Penk has to grow edible tomato (Solanum lycopersicum L.) yields and whether it has an effect on photosynthesis, (II) evaluate the effect of the addition of Penk to accessibility of nutrients in three different soil types, in fluvisols, modal cambisols and modal chernozem, during the incubation, and (III) to analyze the effect of different doses of Penk to changes in nutrient uptake examined soils. Vegetation experiment (I) showed differences in the growth of the biomass tomato depending on the concentration of added Penk. In all soils were decreased nutrient intakes in proportion to the dose of Penk. When applying the higher dose of Penk modal chernozem had decreased nutrient intake over the control sample about half. Addition of lower and higher dose of Penk decreased yields of plants grown on the substrate fluvisols approximately by one third. It has been shown that the addition of Penk adversely affects the content of chlorophyll a and b, but has no significant effect on chlorophyll c. In the soil incubation experiment (II) it was found that in the range of 8 weeks Penk addition affects the accessibility of certain nutrients (micro- and macro-elements) of the soil for the plants, in all monitored soil types. However, it was also shown that after the fourth week of incubation the degradation with consequent increase in the proportion of acceptable nutrients was observed. This proves that Penk is not persistent in soils and its use is very likely safe in the long term. In the sorption of a short term experiment (III), it was observed from the viewpoint of physicochemical interactions estimate changes in nutrient uptake in selected soil improvers based Penk. This thesis showed that Penk has an impact on the accessibility of certain nutrients in the short term. The most significant effect was observed for the iron when its accessibility steeply decreased with increasing addition of Penk. This thesis is trying to assess the behavior of Penk in the environment. They have demonstrated its effects on plant growth and development and the content elements in the above-ground parts and roots of Solanum lycopersicum L. and accessibility of nutrients from the soil in the short and long term.

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This thesis is dedicated to the usage of Finite element method for the purpose of modeling heat transfer within an object. The introduction describes the origin, application and principle of FEM. Then follows the description of ElmerFEM as the main tool for the calculation of heat transfer in a model. The work also includes a characterization of the tool for making and preparation of models Gmsh and another application for displaying results ParaView. Thesis then focuses on the analysis of the model preparation and the effect of these preparations on accuracy and calculation period. Lastly, results are displayed as well as the identification of problematic parts of the solution and finally some possibilities of scripting are showed.

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This diploma thesis aims to assess the restoration of the Olešná water reservoir. The goal of the thesis is to evaluate the measured values of the risk elements and hazardous substances from the sediments extracted from the Olešná reservoir according to Decree No. 257/2009 Coll. on the Use of Sediments on Agricultural Land. Another objective of the thesis is the analysis of basic parameters of water quality. The selected parameters are aggregate phosphorus, aggregate nitrogen, calcium and magnesium. The results of the monitoring are compared with the values of permissible surface water pollution from the Government Ordinance No. 401/2015 Coll. The source data for this thesis were provided by Povodí Odry, s.p. (Odra River Basin Enterprise). Literature review relates to topics of water reservoirs, soil erosion, sediments, quality and pollution of surface waters.