Intensive cattle farms, mostly in lowlands, are obliged to sow grass to produce voluminous fodder also on arable fields. Therefore, their main goal is to produce as much fodder as possible on the smallest possible area or to make the best use of the given area. One possible way is to sow grass as winter crop and then, with one or two spring cuts obtain a more abundant crop. And then plant maize as the main crop. To determine the optimal utilization of the arable fields, grass mixtures were planted on three field plots. Then their usage was monitored and the following parameters were determined at each mowing: botanical composition, height at mowing, fresh herbage yield and some quality parameters. The main objective was to determine whether sufficient fodder could be provided on areas available with only one spring cut and then to use the area for sowing maize. The other objective was to find out if the first cut really achieves the highest yield and the best quality. All analyzes and conclusions were performed on the basis of fresh mass yield. The results showed that the highest yield is achieved with the first and second cut. The yield of fresh mass on the first cut averaged 30.8 t/ha and 34 t/ha on the second cut. The content of NEL and CP was the highest at the first cut, which averaged 7 MJ/kg DM on all plots and CP 186 g/kg DM. The lowest NEL and CP contents were in the fourth cut and were 5.7 MJ NEL kg-1 DM NEL and 129 g CP kg-1 DM. In the end, the results showed that if a farm wants to provide enough green forage for all cattle on the farm with just one first cut, it has to plant 7.15 ha of land for sown fodder production under comparable weather conditions.
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