Produção de matéria seca em mudas de copaíba cultivadas em latossolo amarelo, textura média, sob omissão de nutrientes

Abstract

The objective of the work was to characterize the nutritional petitions of the Copaiferalangsdorffii (oil copaíba), was lead an experiment in house of vegetation of the Agricultural Federal University of the Amazônia in Belém, Pará. The experimental design used was completely randomized, being 13 trataments with 8 replicates: Control (natural soil), Complete fertilizer (with N, P, K, Ca, Mg, S, Cu, Fe, Mn, Zn), Complete + liming for saturation of bases (V%) of 60 % and Complete with the omission of a nutrient for time (- N, - P, - K, - Ca, - Mg, - S, - Cu, - Fe, - Mn, - Zn). It was evaluated the production of dry substance and the 0 variable height and diameter. The sequence of nutricional requirement of copaíba was to the following one: N > Mg > Cu > Fe > Zn > Ca > K > P > S. The Complete treatment liming, favored the relative growth in the aerial part of the plant. The nitrogen omission affected the relative growth, in the aerial part and root. The development of the changes of copaíba is satisfactory, when the fertilization is followed of liming. The omission of nutrients did not have significant effect in the height of the changes of copaíba. The liming promoted the biggest growth in diameter of stalk of changes of copaíba.