Initial growth of Schizolobium parahybae in Brazilian Cerrado soil under liming and mineral fertilization

Ademilson Coneglian,Joáz Dorneles Junior,Rennan F. Pereira,Bruno S. Melo,Pedro H. P. Ribeiro

doi:10.1590/1807-1929/agriambi.v20n10p908-912

Abstract

ABSTRACT High prices and the scarcity of hardwoods require the use of alternative wood sources, such as the Guapuruvu (Schizolobium parahybae), an arboreal species native to the Atlantic Forest, which has fast growth and high market potential. However, there is no information on its cultivation in the Brazilian Cerrado. Thus, this study aimed to analyze the contribution of mineral fertilization and liming in a Cerrado soil on the initial growth of Schizolobium parahybae. The experiment was set in a randomized block design, with 4 treatments (Cerrado soil; soil + liming; soil + fertilizer; and soil + fertilizer + liming) and 15 replicates. The following variables were analyzed: plant height, stem diameter, number of leaves, total, shoot, leaf, root and stem dry matter, and root/shoot ratio. The obtained data were subjected to the analysis of variance, Tukey test and regression analysis. During the initial growth, Schizolobium parahybae can be cultivated in a Brazilian Cerrado soil only under mineral fertilization, with no need for soil liming.

Highlights

Forest production in Brazil mainly refers to Pinus and Eucalyptus plantations, with the largest sustainable production in the Southeast region, followed by South, Northeast, Midwest and North (ABRAF, 2013)
Schizolobium parahybae is an arboreal species, native to the Atlantic Forest, which occurs from the state of Bahia until Santa Catarina (Carvalho et al, 2008)
Soil chemical analysis was performed at the Solocria Agricultural Laboratory Ltda., with the following attributes: pH = 5.2; P = 4.0 mg dm-3; K = 126.0 mg dm-3; Ca2+ = 1.8 cmol dm-3; Mg2+ = 3.0 cmolc dm-3; Al3+ = 0.0 cmolc dm-3; Zn = 2.9 mg dm-3; Fe = 61.1 mg dm-3; Mn = 19.5 mg dm-3; Cu = 1.3 mg dm-3; B = 0.23 mg dm-3; H + Al = 2.2 cmolc dm-3; Sum of exchangeable bases = 3.12 cmolc dm-3; Effective cation exchange capacity = 3.12 cmolc dm-3; Cation exchange capacity at pH 7.0 = 5.32 cmolc dm-3; Base saturation index = 58.75%; Aluminum saturation index = 0%; Organic matter = 28 g dm-3

Summary

Introduction

Forest production in Brazil mainly refers to Pinus and Eucalyptus plantations, with the largest sustainable production in the Southeast region, followed by South, Northeast, Midwest and North (ABRAF, 2013). Schizolobium parahybae is an arboreal species, native to the Atlantic Forest, which occurs from the state of Bahia until Santa Catarina (Carvalho et al, 2008). It has great cultivation potential in the South and Southeast regions of Brazil, for its fast growth (Brienza Júnior et al, 1991), capacity to recover riparian forests, and many purposes in which its wood and bark can be used, besides being considered as a promising source of cellulose pulp (Ferreira et al, 2007). This study aimed to evaluate the initial growth of Guapuruvu (Schizolobium parahybae) in a Brazilian Cerrado soil under liming and NPK fertilization

Material and Methods

Results and Discussion

Literature Cited