EN
For mountain grasslands a specialty is their fertilisation by sheep folded behind hurdles. The productiveness of this practice was compared with inorganic fertilisation per annum. The elements of assessment covered floristic composition of the sward, dry matter and crude protein yields, and productivity per basic nutrients (1 kg PKN). The effects of folding in general were temporary regardless of stocking density. Spring term of application gave a perceptible outcome for 2 years, while for the autumn one it was merely in the following year.