In a mountain region of the Slovak Republic (altitude 960 m, cold and wet climatic region, total annual rainfall 900 mm, over a growing season 500 mm, mean annual daily air temperature 4 degree C, over a growing season 9.5 degree C) changes in botanical composition of overdrilled grassland (2000-2001) were investigated after the cessation of eight-year fertilizer application at PK, N90 and N180 treatments. The botanical composition of the sward was determined by a method of projective dominance of species prior to the 1st cut. Two years of withdrawn phosphorus and potassium fertilizers application (PK treatment) resulted in marked changes in the botanical composition of the sward: the proportion of grasses increased (from 34 to 52 %) while that of legumes decreased by 19 %. The cessation of fertilizer nitrogen application (treatments N90 and N180) showed a notable impact in the N180 where the herb proportion rose by 11% at the expense of grasses. The 15 % decrease in the proportion of grasses resulted mostly from the declined presence of cocksfoot (Dactylis glomerata L.) in the sward. In 1999 (the last year of fertilizer application), 45 % of cocksfoot was recorded in sward. However, in 2000 (the second year of eliminated fertilizer application), only 6% proportion of cocksfoot was found at the N180 treatment