Comparative performance of Leucaena pallida and Calliandra calothyrsus on an acid soil in a sub-humid environment in Burundi

acid soils age aliment pour animaux aluminio aluminium arbre biomasa biomass biomasse calliandra calothyrsus crecimiento croissance edad especies feeds fodder growth harvesting date highlands leucaena multipurpose trees piensos rendement rendimiento soil toxicity sol acide species toxicidad del suelo trees trial methods yields