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Initial growth of Gmelina arborea Roxb. applying different fertilization treatments in South Pacific of Costa Rica Gmelina arborea (melina) is a fast growing species, however, applying proper fertilization can increase their productivity. In this study different fertilization treatments were tested in two different essays in Finca Puntarenas, Osa. In the first essay twelve fertilization treatments was applied in the establishment of the plantation and trees were measured at 11 months of age, where the largest growth in height (4,87 m) was obtained by applying 64 g tre -1 of fertilizer formula 19

Influencia de factores biofísicos y de manejo en el crecimiento de Cedrela odorata L. en asocio con café en Pérez Zeledón, Costa Rica from inception to the final cycle. The species had a better developed at an altitude between 608 and 707 meters above sea level, on lower slopes to 21 % and soils with less content to 3.6 mg l -1 Cu, 165 mg l -1 of Fe, pH greater than 4.9 Mg and Ca -1 ratio greater than 4.1.Influence of biophysical and management factors on the growth of Cedrela odorata L. in association with coffee in Pérez Zeledón, Costa Rica