Resumo

SALCEDO PEREZ, Eduardo et al. Effect of the edaphic properties and foliar content of nutrients on the growth of teak trees. Rev. mex. de cienc. forestales [online]. 2014, vol.5, n.24, pp.80-91. ISSN 2007-1132.

The effect of the edaphic properties and of the foliar content of nutrients on the growth of 2-year old teak trees in the municipality of Ruiz, Nayarit, was assessed. Three sites within a plantation were chosen, and soil samples were physically and chemically analyzed; besides, the percentage of minerals in the leaves of the upper and lower strata of the canopy, collected at four different times of the year, was determined. The results were correlated with the total height and the stem diameter. The sandy, loamy substratum with little organic matter had an impact on the reduction of the cationic exchange capacity (CEC) and caused a reduction in the concentration of nutrients in the soil and the leaves; all this derived in a reduced development both in height and in diameter. The percentage of clay in the soil was related to the increase in diameter (r= 0.8378); the upper leaves had higher percentages of N, P and K (2.26, 0.19 and 0.63 % respectively), and in the lower leaves there was more Ca; a seasonal variation in the amounts of Ca, Cu, Fe, Mg and Mn was registered; these increased during the dry season. On the other hand, Zn was favored during the rains; N, P and K kept constant through the year. K and P had a positive influence on teak growth.

Palavras-chave : Leaves; nutrients; vegetal nutrition forest plantations; forest soil; Tectona grandis L. f.

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