The effect of modified pratotechnology on herbage production of meadow sward was observed since 2001. Treatments were: mown once (1C) and twice a year with biomass removal — fertilized (2C + N) and unfertilized (2C), mulched twice (2M) and once a year (1M) and non- used plots (0). The yields of aboveground phytomass in 2001 and 2002 were highest on fertilized twice mown treatment {8.7 and 10.4 t DM/ha resp.), on unfertilized twice mown treatment (7.7 and 8.8 t DM/ha resp,). With lower management intensity herbage yield decreased, except in the non-use treatment (6.2 t DM/ha in 2002). The enhancement of yield from nitrogen released from mulch was not found. Vertical stratification of green mass is affected by botanical composition and different treatments.