Desenvolvimento inicial e composição mineral de copaíba cultivadas em latossolo amarelo, textura média, sob omissão de nutrientes

Abstract

This study aimed to characterize the nutritional requirements of Copaifera langsdorffii (Copaiba oil), an experiment was conducted in a greenhouse at the Federal Rural University of Amazonia in Bethlehem, PA. The number of 13 treatments were arranged in a randomized design with eight replicates: control (natural soil), Full (fertilized with N, P, K, Ca, Mg, S, Cu, Fe, Mn, Zn) Complete + Liming to raise the base saturation (V%) of soil to 60% and complete with the omission of a nutrient at a time (-N-P-K-Ca-Mg-S - Cu - Fe, - Mn-Zn) .. Nitrogen is the nutrient most limiting, followed by iron and zinc for the production of dry copaiba grown in Oxisol, medium texture. The sequence of nutritional requirement of Copaiba was the following: N> Mg> Cu> Fe> Zn> Ca> K. The omission of nutrients caused no significant effect on growth e. The development of seedling Copaiba is satisfactory when applied to soil fertilization followed by liming to raise the base saturation to 60%.