INSTITUTO DE FISIOLOGIA VEGETAL
Unidad Ejecutora - UE
Relationship Between Height Growth and Foliar Nutrient N and P Concentration in a Eucalyptus grandis Plantation, in North Eastern Argentina
SARAH L. BURNS; CAROLINA PÉREZ; MARCELO FABIÁN ARTURI; JUAN FRANCISCO GOYA; CORINA GRACIANO
JOURNAL OF SUSTAINABLE FORESTRY
Haworth Press, Inc
Año: 2011 vol. 30 p. 313 - 313
The relationship between the height growth, foliar concentrations of nitrogen (N) and phosphorus (P), and the N:P ratio was analyzed in a fourth rotation plantation that did not respond to fertilization with these nutrients. Spearmans nonparametric correlation analysis was used to evaluate the association between growth in heightcalculated as the difference between heights measured at 1 year and 2 years after plantingand foliar N and P concentrations, as well as N:P ratio, determined in the 1-year-old plantation. Only a weak positive correlation between height growth and foliar phosphorus concentration in planted seedlings was found. A significant negative relation was observed between the growth and N:P ratio in seedlings. Foliar concentrations suggest that there were neither P nor N limitations for growth in the analyzed period. This may be due to management of harvest residues, which were abandoned on site without burning.