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Vliv obnovy travních porostů na produkci a kvalitu píce a na rentabilitu u ekologicky hospodařícího podniku
 Vysloužil, Jan
The diploma thesis evaluates the effects of different methods of grasslands renovation. Three variants were compared – original permanent grassland, renovation using commercial mixture and renovation with regional mixture, at two sites in the village of Štítná nad Vláří – Popov in the White Carpathians. The literary research is dedicated to the importance of grasslands and their restoration in accordance with the principles of ecological farming. Furthermore, the conditions of the White Carpathians Protected Landscape Area are presented. The research part describes the results of the annual yield of dry fodder, the quality of the grassland according to the feed value and the representation of plant species. The stand renewed with the commercial mixture showed the highest yields (3.73 t/ha) and quality, with the regional mixture the effect of renewal was not evident. At the end, an economic evaluation of the renewal of the grassland is carried out using a contribution margin. It was minus 2093 CZK/ha for the given trial, the yield threshold was set at 4.7 t/ha. Restoration using a regional mixture was evaluated as too costly.
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