Influence of sod seeding on grassland quality in the first cut.

Sod seeding was carried out in the pasture sward in Bartosovice (Czech Republic). Four different ways of sowing in to the existing vegetation were used. The mixture of sod seeding contained Festulolium pabulare, Dactylis glomerata, Arrhenatherum elatius and Lotus corniculatus. The first cut was used for conservation. Grassland quality (botanical composition) and content of nutrients in the silages were evaluated. Different technologies of sod seeding improve dominance of new sown species in a grass stand. The most successful one was a radical disturbance of the original grass sward with technology Horsch Exaktor. Sod seeding improves grassland quality in terms of botanical composition (EGQ). Dominance of the sown species up to 20% was not sufficient for influencing the nutrients in ensilaging biomass. Content of CF and NDF influenced use of inoculants at ensilaging (P < 0.05). Probiotic and probioenzymatic inoculants improve quality of silage process. Thanks to inoculants was lower content of butyric acid (P < 0.01).