[Changing of growth profile of intermediate perennial ryegrass (cv Sisu) using various cutting strategies]

aliment pour animaux azote calidad carbohydrate content contenido de carbohidratos contenido de materia seca crecimiento croissance crop yield drought stress dry matter content feeds fertilisation fertilizer application frecuencia de las cosechas growth harvesting date harvesting frequency leaf area lolium perenne modele modelos models nitrogen nitrogen content organic matter piensos primavera printemps quality rebrote regrowth rendement des cultures rendimiento de cultivos repousse spring summer superficie foliar surface foliaire teneur en azote teneur en glucides verano