Winter cereal for roughage, 2: Harvest of green- and whole crop of winter barley undersown ryegrass and clover grass

barley calidad carbohydrate content cebada contenido de carbohidratos contenido de materia seca contenido proteico cosecha crop yield dry matter content fertilisation fertilizer application forraje grosero fourrage grossier harvesting lolium perenne nutritive value orge protein content quality rendement des cultures rendimiento de cultivos roughage teneur en glucides trifolium pratense valeur nutritive valor nutritivo