QUALITY OF THE GRASS-LEGUME SWARD AS AFFECTED BY THE PHOSPHORUS-POTASSIUM FOLIAR FERTILIZATION

The investigations were conducted in the years 2006-2008 on the grass-legume sward, on the brown acidic soil classified to the V quality class. The aim of the experiment was to evaluate the influence of the foliar fertilization with Alkalin PK 10:20 (phosphorus and potassium fertilizer) on the yielding and the quality of the meadow sward. Foliar application of the Alkalin increased the dry matter yield by the 11 % (on average) in relation to the control object. Moreover, it was found that foliar utilization of Alkalin resulted in the increased organic components' content (total protein, raw fat) and the concentration of mineral components (raw ash, phosphorus, potassium, calcium and sodium). The application of this preparation in a dose of 3.0 dm(3) . ha(-1) caused the average growth of the above-mentioned components by 14, 33, 32, 38, 44, 58 and 42 %, respectively, when compared with the control object. On the other hand, decreased contents of the crude fiber as well as its ADL and NDF fraction were observed.