[Establishment, management, and production of sole and mixed pastures with dual-purpose cows in acid soil farms in the humid tropics]

acid soils andropogon gayanus botanical composition brachiaria decumbens brachiaria dictyoneura carga ganadera centrosema acutifolium centrosema macrocarpum centrosema pubescens composition botanique conduite des herbages cows desmodium ovalifolium establecimiento de plantas grassland management humid tropics lait leche manejo de praderas milk pastizales pastures peru plant establishment production data soil chemicophysical properties sol acide stocking density stylosanthes guianensis taux de charge tropiques humides vaca vache