Published in Scientific Papers. Series A. Agronomy, Vol. LXVI, Issue 1
Written by Aliona MIRON, Victor ŢÎȚEI, Alexei ABABII, Alexandru TLEUȚĂ, Ana GUȚU, Ludmila TALMACI, Valentina COȘMAN, Alexandru GALUPA, Serghei COZARI, Adrian-Ilie NAZARE, Liliana MARDARI, Ștefan LAZU, Natalia CÎRLIG
Grasslands have a wide range of economic and ecological functions. We studied the productivity and quality of the biomass obtained from an area of grassland with Elymus repens, Poa pratensis and Festuca valesiaca, which is found within the boundaries of Orhei National Park, Republic of Moldova. The biomass was harvested at the beginning of the flowering stage and was dried under natural conditions. It was established that the productivity of grassland with Elymus repens were 4.72-9.31 t/ha dry matter, the grassland with Poa pratensis 1.38-3.63 t/ha dry matter and the grassland with Festuca valesiaca 1.59-3.77 t/ha dry matter. The biochemical composition of hay dry matter was: 6.62-13.90% crude protein, 1.31-3.43% crude fat, 26.65-40.78% crude cellulose, 43.27-53.02% nitrogen free extract, 2.41-6.82% sugars, 1.40-2.83% starch, 6.79-11.29% ash, 0.27-0.73% Ca, 0.15-0.30% P, 4.40-41.12 mg/kg carotene with energy concentration 17.78-18.44 MJ/kg GE, 7.93-9.73 MJ/kg ME and 4.28-5.50 MJ/kg NEl. The gas forming potential of the fermentable organic matter of the hay collected from the studied grassland varied from 400 to 598 l/kg VS, and specific methane yield varied from 210 to 314 l/kg VS.
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