The intention of the diploma work was the choice of main sorts of bioproduction, charting of the structure of bioproduction in light of origin and detection of sold volume of chosen bio ? food stuff in the South Bohemia. The method - monitoring of the sale in terrain was chosen for charting of the structure of bioproduction. The bioproduction was found out in two types of markets ?markets and markets which are specialized for bio ? food stuff. In the South Bohemia there was chosen 15 markets and 15 markets which are specialized for bio ? food stuff. The structure of bio ? food stuff in light of origin (Czech/import) and in light of volume of sold production was found out in each market. The target bio ? food stuff were beef, grain, dairy products and fruit and vegetable. The data were found out from the packets of bio ? food stuff or through the interview with the chief of the market.

This diplom thesis deals with the evaluation of quality machines work for soil cultivation used in minimalization soil cultivation technology and weed control in cereal crops. The machines were evaluated for incorporation of harvest residues, uniformity of depth and size of lumps. It was further performed an economic evaluation of selected cost per operation soil cultivation. In order to monitor the development of weeds was based small-plot experiment, where was monitored representation of individual weed species and the effectiveness of selected herbicide.

This diploma thesis inquires into the quality of the soils at 30 archaeological sites from the periods from Late Bronze Age to Early Bronze Age (1 250 - 450 BC). The aim of the thesis is to prove the dependence of the ratio of the cultivated cereals on the soil and other environmental factors in various regions. The secondary aim is the general observation of the changes, which could appear from this period until now. These changes are represented by the erosion, researched by various methods. The overview of the literature aims to the short description of the archaeological sources from the period, various approaches to the soil evaluation until present as well as information about the soil erosion and tools for its research. The conclusion of the thesis is that the ratio of the cultivated cereals depends mostly on the sea level, secondly on other environmental factors (included the soil quality). The results of the thesis are influenced by number of factors, discussed in the conclusion Keywords: soil quality, cereals, archaeological sites, perimeter of kilometre, soil erosion, late bronze age, early iron age