EN
In 2007–2009 assessed the impact of mineral fertilization on the production value of mountain pastures grazed by sheep. Pasture was grazed 4 times during summer in rotational grazing. The study included five objects: controls and 4 fertilized. Elements of the assessment were: sward floristic compositions, dry matter yield, crude protein and utilization of these yields by sheep. The biggest impact of these parameters had a phosphorus-potassium fertilization. However, floristic compositions from the point view of fodder value and the highest yield of dry matter were available and obtained by sheep under influence of following fertilization: P-25 kg, K-60 kg, N-60 kg ha–1.