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Aim is to assess the impact of farming methods and frequency of use of grassland on the yield and quality of forage biomass of grasslands and draft recommendations for use of certified grass.The observed area was around Kašperské Mountains, where, three different pastures. Botanical images were carried out in the pasture Lídlovy Dvory, Nebe and Ovčárna. Subsequently, analysis was performed with stand composition farming techniques.

The aim of this diploma thesis was to find out the causes of low returns on chosen cereals (oat, wheat, rye, and spelled) in ecological agriculture based on evaluating information on growing procedures obtained via the method of questionnaires. Gradually, 21 ecologically farming companies controlled by the Abcert AB a Biokont CZ, s.r.o. organizations were chosen. Based on the analysis of growing procedures, the most frequent mistakes made by farmers were identified. Companies with lower returns apply mainly an inappropriate structure of crops grown, a high representation of cereals, and they do not respect crop rotation principles. Especially in favourble conditions, some farms are run without livestock production. Leguminosae representation is low in most companies, intercrops are used very seldom. In case of straw plow, the C:N ratio is not maintained using manure. Mineral manure is not used at all, liming very seldom. Vegetation is usually not fertilized during vegetation period. Cereal weed regulation is carried out, but not sufficiently. Using farm seed is quite frequent, which increases the growth of weed. Comparing returns on cereal among better and worse companies, it is obvious that respecting given principles may increase return on seed in 1.0 to 1.9 t/ha.

These days, wild pig, or wild boar, causes considerable damage in the Czech Republic, but also in other countries of almost the whole of Europe. The thesis describes the issues of damage done by the wild pig and the protective measures against this damage. The basis of the thesis was to measure the areas of damaged vegetation of unbearded and bearded varieties of wheat. Damaged areas on individual fields of both varieties were then compared with each other and evaluated. The choice of a variety, as an agro-technological measure against damage done by wild pigs, showed to be very effective. The damages that the wild pig did in unbearded varieties were not done in bearded ones.

This diploma thesis deals with the cultivation of fast-growing wood and concentrates on the influence of particular factors like e.g. location, agrotechnology and fertilizers, which have a crucial impact on the phytomass production. Moreover, the thesis evaluates the economic efficiency of this type of sustainable energy ressource, which can be a source of local business. Introductory theoretical chapters describe essentials rules of the cultivation of fast-growing wood. Furthermore the thesis presents general information in this field and proposes suitable wood clones. In addition, the thesis outlines the process of choice and preparation of the agricultural parcel, the usage of various fertilizes, herbicides and agrotechnology. The applied core characterises the business case itself. The primary research compares financial investment and its return of two examined agricultural parcels under the prerequisit of suitable choice of location and agrotechnology. A trail phase depictes the cultivation of fast-gworing wood and discuss presumptions for succesfull business. This thesis is mainly based on primary research. The acquired data are further analyzed and the final chapter attempts to outline the results and suggest measures.

The thesis focuses on catch crops and crop rotation used in conventional agriculture and the possibility of their utilization in anti-erosion protection. The thesis includes a research which describes land consolidation and the main territorial systems which allow anti-erosion protection. Different kinds of erosion and the crop rotation are described in this thesis. The chapter about catch crops is focused on the inclusion of catch crops into the crop rotation. The goal of this study is to assess the real suggested actions used during the land consolidation and to compare their effectiveness with the effectiveness of crop rotation including catch crops.

The main aim of this diploma work was to prove the necessity of crop rotations in dependence on economical and ecological angle. The survey was made by two agricultural entities during years 2003 {--} 2008. A comparison of crops yield was made concerning six plants (winter wheat, spring barley, oat, potato, winter rape and silage corn. The first company grows plants only in short-period sequence and the second one rotates plants in settled crop rotation. Higher crops were demonstrably confirmed in a company, which rotates the plants patterns. The analysis was performed by the second company. In this analysis was made a revision of soil fund and structure of cultivated plants. On the basis of gained findings was offered the most suitable crop rotation which could be practically used.