Effects of developmental stages at harvest, nitrogen application and moisture availability on the yield and nutritional value of Rhodes grass (Chloris gayana Kunth)-lucerne (Medicago sativa) pastures. Field studies at Kulumsa, Arsi, Ethiopia

acid detergent fibre bilan de l'eau dans le sol chloris gayana contenido de agua en el suelo contenido de materia seca crop yield crude fibre crude protein developmental stages digestibilidad digestibility digestible fibre dry matter content etapas de desarrollo evapotranspiration feed legumes fertilizantes nitrogenados fibra asimilable fibra bruta fibre brute fibre digestible growth period leguminosas forrajeras ligninas lignine lignins medicago sativa metabolizable energy minerales minerals neutral detergent fibre nitrogen fertilizers nutritive value organic matter proteina bruta rendement des cultures rendimiento de cultivos soil water balance soil water content teneur en eau du sol valeur nutritive valor nutritivo