Agroscope, Institute for Plant Production Sciences IPS, 1260 Nyon, Switzerland

Effect of management on nutritive value of meadows

The effects of management intensity on the content of net energy for lactation and crude protein of grass-clover mixtures, cocksfoot ( Dactylis glomerata L.), perennial ryegrass ( Lolium perenne L.), white clover ( Trifolium repens L.) were investigated. Increasing cutting frequency from four to five times per year resulted in a higher content of net energy and crude protein of the forage. Nitrogen fertilization of grass-clover mixtures had a slight influence on the content of net energy but decreased the content of crude protein. The net energy content of mixtures, which received 0, 15 or 30 kg N/ha and growth cycle, was lower compared to perennial ryegrass, but the yield of net energy was higher in grass-clover mixtures than in monocultures.

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