Studies on the grassland management in late-autumn and early-spring, 2; Effect of fertilizer application time in spring on growth, crude protein content and yield of grasses for grazing

abonado de cobertera apport en couverture choix de la date conduite des herbages crecimiento croissance crop yield gramineas graminee grasses grassland management grazing growth manejo de praderas pastoreo productividad productivity rendement des cultures rendimiento de cultivos timing