EFFECT OF NITROGEN AND SEWAGE SLUDGE APPLICATION ON JUVENILE WOOD CHARACTERISTICS OF Eucalyptus grandis TREES

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Carlos Roberto Sette Junior Mário Tomazello Filho José Luis Lousada Jean Paul Laclau

Abstract

This work evaluated the wood anatomical and physical characteristics of 24 months-old Eucalyptus grandis trees, planted in 3x2m spacing and fertilized with nitrogen ( 6, 12, 18 month old ) and sewage sludge (planting, 8 month old). For each treatment 10 eucalypts trees were cut according to the distribution of basal area. Wood samples were collected in different percentages of the total height to analyze the anatomical (vessels and fibers) and physical (wood density) characteristics. The results showed that the wood apparent density and wood basic density of the eucalypt trees in the nitrogen and sewage sludge were larger in comparison to the control. Radial profiles of wood apparent density were similar in the three treatments, presenting the exected characteristics of juvenile wood of 24 months-old eucalypt trees. Fiber and vessel dimensions were not affected by fertilization.

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How to Cite
JUNIOR, Carlos Roberto Sette et al. EFFECT OF NITROGEN AND SEWAGE SLUDGE APPLICATION ON JUVENILE WOOD CHARACTERISTICS OF Eucalyptus grandis TREES. CERNE, [S.l.], v. 15, n. 3, p. 303-312, oct. 2015. ISSN 2317-6342. Available at: <http://cerne.ufla.br/site/index.php/CERNE/article/view/664>. Date accessed: 19 sep. 2019.
Keywords
Anatomy, wood density, eucalypt, bio-solid, X-rays
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Article