Vliv stanoviště a agrotechniky na produkci fytomasy vybraného klonu topolu (Populus nigra L. X Populus maximowiczii Henry) pro energetické účely

The thesis deals with theme of fast-growing species and with the impact of agricultural practices (like choice of location, care and possibility of fertilizers usage) which are the most important factors for successful cultivation of energy tree species. The introductory part of the thesis contains an explanation of the term biomass and its possible distribution by types and ways of obtaining the biomass. Following chapters deal with fast-growing tree species. The issues of cultivation are also described here in parts like basic characteristics, history of these energy species, legislative restrictions and procedure during founding of the plantation itself, selection and preparation of locality, the use of agricultural practices (cultivation, fertilization). The practical part deals with it´s own experiment with a clone of poplar J 105 (Populus nigra L. x Populus maximowiczii Henry). This clone of poplar was planted on four experimental plots. The growth depending on the conditions of habitat and selected agritechnical measures was observed in following years. There are descriptions of conditions on all localities, chosen ways of planting and aftercare about tree vegetation. Another experiment which contained adding different types of nitrogenous fertilizers was performed in the last period of observing. Results showed that the greatest impacts on the quality of the growth of fast-growing trees have properly chosen location and aftercare about tree vegetation, at least in the first vegetation period. Addition of fertilizer seemed as important only in case of planting on nutrient very poor sites.