Index of efficiency of macronutrients in tree species in a mixed araucaria forest/Paraná State

Marcos Vinicius Winckler, Renato Marques, Ronaldo Viana Soares, Luciano Farinha Watzlawick

Abstract


The main objective of this research work was to study the Efficiency Index of Macronutrients in tree biomass in a Mixed Araucaria Forest through 20 primary sample plots of 12 m x 12 m. The efficiency indexes of macronutrients (EIMacronutrients) varied between the tree species, and between the biomass up ground components (stem = wood stem + bark; leaves and total = stem + branch + leaves). The species that showed hight EIMacronutrients to the stem production were the same that showed hight EIMacronutrients to the woody components production (stem + branches), excetp Myrsine ferruginea; Schinus terebinthifolius and Calyptranthes concinna.


Keywords


Tree species; Nutrients efficiency; Araucaria Forest.



DOI: http://dx.doi.org/10.5433/1679-0359.2006v27n3p321

Semina: Ciênc. Agrár.
Londrina - PR
E-ISSN 1679-0359
DOI: 10.5433/1679-0359
E-mail: semina.agrarias@uel.br
Este obra está licenciado com uma Licença Creative Commons Atribuição-NãoComercial 4.0 Internacional