Abstract
The aim was to evaluate the effects of cattle liquid manure (LM) in combination with mineral fertilizers on the yield, quality and botanical composition of mountain grassland in comparison with mineral fertilization. Addition of 5.0 litre/m2 LM to mineral fertilizers applied increased the fresh weight yield by 63% and dry matter yield by 55% compared to mineral fertilization, while there were no significant differences between fertilization treatments in the contribution of grasses, legumes and forbs to the total DM yield, nor to neutral detergent fiber (NDF), acid detergent fiber (ADF) and crude protein (CP) contents. The first cut forage had higher NDF (566.7 g/kg) and ADF (328 g/kg) and lower CP (151.64 g/kg) compared to the 2nd cut (509.8 g/kg, 290.1 g/kg, 169.13 g/kg, respectively), which seemed highly related to the significantly lower in-sacco dry matter degradability (786.2 g/kg) of this cut compared to the 2nd cut (794.14 g/kg). Mineral fertilization treatment had a higher rumen undegraded protein content (26.39 g/kg) than the combination of LM and mineral fertilizers (23.47 g/kg).
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