Propriedades físicas, energéticas e químicas de madeira de Cordia trichotoma Arrab.ex Steud submetidas a diferentes adubações

Abstract

The use of wood has always been present in human life, being used for various purposes, such as energy, paper and cellulose production, in the steel industry, panel production, civil construction and furniture making. Therefore, studies with wood species are essential so that their uses and purposes are increasingly improved. The objective of the work was to evaluate the physical, chemical and energetic properties of Cordia trichotoma wood subjected to different levels of mineral fertilization. For chemical analysis, sample preparation was based on the methodology described in NBR 14660; For extractives and lignin content, the TAPPI T2O4 cm-97 standards (TECHNICAL ASSOCIATION OF THE PULP AND PAPER INDUSTRY, 1997) and the methodology described by Gomide and Demuner (1986), respectively, were used. To carry out the physical tests, the NBR7190 standard was used. The content of volatiles, ash and fixed carbon was determined using the D-1762-84 standard (ASTM, 2007). The results obtained in the different fertilizations were subjected to analysis of variance (ANOVA) and when a difference was found, they were subjected to the Tukey test at a 5% probability of error, using the Rbio software. No physical properties tested changed in the different fertilizations. The extractive content increased with increasing fertilization. Fixed carbon decreased and volatile content increased with higher fertilizer doses.