MECHANICAL CHARACTERIZATION AND SHRINKAGE OF Sclerolobium paniculatum Vogel WOOD IN A HOMOGENEOUS PLANTING UNDER DIFFERENT LEVELS OF FERTILIZATION

Detalhes bibliográficos
Autor(a) principal: Oliveira, Joselito Bonifácio
Data de Publicação: 2006
Outros Autores: Vale, Ailton T., Melo, José Teodoro de
Tipo de documento: Artigo
Idioma: por
Título da fonte: Ciência Florestal (Online)
Texto Completo: https://periodicos.ufsm.br/cienciaflorestal/article/view/1890
Resumo: The purposa of this work was to study the influence of fertilization on wood quality of Sclerolobium paniculatum Vogel. A homogeneous planting trial, under different levels of liming and phosphorus, was established by Embrapa-Cerrados 18 years ago in Planaltina, Distrito Federal, Brazil, tropical wood savanna region. Mechanical tests conducted were static bending, parallel compression to grain, shear strength and shrinkage. No significant differences were observed for mechanical properties or for shrinkage, which presented: ¦b = 650kg/cm2, E = 59.877kg/cm2, ¦c = 296kg/cm2 e ¦n = 131kg/cm2. Control treatment showed highest values for shear strength and compression parallel to grain. Too many branches in all trees and also too many knots in lumber were observed. Pruning is recommended for homogeneous planting of Sclerolobium paniculatum to avoid knots in order to be produced wood of superior quality.
id UFSM-6_2c8a00e43e96c7a5aa8156310d159be0
oai_identifier_str oai:ojs.pkp.sfu.ca:article/1890
network_acronym_str UFSM-6
network_name_str Ciência Florestal (Online)
repository_id_str
spelling MECHANICAL CHARACTERIZATION AND SHRINKAGE OF Sclerolobium paniculatum Vogel WOOD IN A HOMOGENEOUS PLANTING UNDER DIFFERENT LEVELS OF FERTILIZATIONCaracterização mecânica e contração da madeira de Sclerolobium paniculatum Vogel cultivado em um plantio homogêneo sob diferentes níveis de adubação.characterizationwoodSlerolobium paniculatum.caracterizaçãomadeiraSlerolobium paniculatumThe purposa of this work was to study the influence of fertilization on wood quality of Sclerolobium paniculatum Vogel. A homogeneous planting trial, under different levels of liming and phosphorus, was established by Embrapa-Cerrados 18 years ago in Planaltina, Distrito Federal, Brazil, tropical wood savanna region. Mechanical tests conducted were static bending, parallel compression to grain, shear strength and shrinkage. No significant differences were observed for mechanical properties or for shrinkage, which presented: ¦b = 650kg/cm2, E = 59.877kg/cm2, ¦c = 296kg/cm2 e ¦n = 131kg/cm2. Control treatment showed highest values for shear strength and compression parallel to grain. Too many branches in all trees and also too many knots in lumber were observed. Pruning is recommended for homogeneous planting of Sclerolobium paniculatum to avoid knots in order to be produced wood of superior quality.O objetivo do presente trabalho foi caracterizar a madeira de Sclerolobium paniculatum Vogel, de 18 anos de idade, oriunda de plantio homogêneo sob diferentes níveis de adubação localizado na Embrapa-Cerrados, DF, quanto à contração e às características mecânicas (flexão estática, compressão paralela às fibras e cisalhamento). Não foram encontradas diferenças significativas entre as médias das variáveis estudadas que apresentaram os seguintes valores: resistência máxima à flexão estática (ƒb = 650kg/cm2), módulo de elasticidade (E = 59.877kg/cm2), resistência máxima à compressão axial (ƒc = 296kg/cm2) e resistência máxima ao cisalhamento (ƒv = 131kg/cm2). Para cisalhamento e compressão axial, a testemunha apresentou o maior valor absoluto para MOR. A madeira de Sclerolobium paniculatum apresentou um elevado número de galhos, implicando uma elevada quantidade de nós. Os tratos culturais em plantios homogêneos de Sclerolobium paniculatum devem prever a retirada de galhos para produzir madeira de qualidade superior.Universidade Federal de Santa Maria2006-03-30info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufsm.br/cienciaflorestal/article/view/189010.5902/198050981890Ciência Florestal; Vol. 16 No. 1 (2006); 89-97Ciência Florestal; v. 16 n. 1 (2006); 89-971980-50980103-9954reponame:Ciência Florestal (Online)instname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMporhttps://periodicos.ufsm.br/cienciaflorestal/article/view/1890/1136Oliveira, Joselito BonifácioVale, Ailton T.Melo, José Teodoro deinfo:eu-repo/semantics/openAccess2017-05-15T17:44:08Zoai:ojs.pkp.sfu.ca:article/1890Revistahttp://www.ufsm.br/cienciaflorestal/ONGhttps://old.scielo.br/oai/scielo-oai.php||cienciaflorestal@ufsm.br|| cienciaflorestal@gmail.com|| cf@smail.ufsm.br1980-50980103-9954opendoar:2017-05-15T17:44:08Ciência Florestal (Online) - Universidade Federal de Santa Maria (UFSM)false
dc.title.none.fl_str_mv MECHANICAL CHARACTERIZATION AND SHRINKAGE OF Sclerolobium paniculatum Vogel WOOD IN A HOMOGENEOUS PLANTING UNDER DIFFERENT LEVELS OF FERTILIZATION
Caracterização mecânica e contração da madeira de Sclerolobium paniculatum Vogel cultivado em um plantio homogêneo sob diferentes níveis de adubação.
title MECHANICAL CHARACTERIZATION AND SHRINKAGE OF Sclerolobium paniculatum Vogel WOOD IN A HOMOGENEOUS PLANTING UNDER DIFFERENT LEVELS OF FERTILIZATION
spellingShingle MECHANICAL CHARACTERIZATION AND SHRINKAGE OF Sclerolobium paniculatum Vogel WOOD IN A HOMOGENEOUS PLANTING UNDER DIFFERENT LEVELS OF FERTILIZATION
Oliveira, Joselito Bonifácio
characterization
wood
Slerolobium paniculatum.
caracterização
madeira
Slerolobium paniculatum
title_short MECHANICAL CHARACTERIZATION AND SHRINKAGE OF Sclerolobium paniculatum Vogel WOOD IN A HOMOGENEOUS PLANTING UNDER DIFFERENT LEVELS OF FERTILIZATION
title_full MECHANICAL CHARACTERIZATION AND SHRINKAGE OF Sclerolobium paniculatum Vogel WOOD IN A HOMOGENEOUS PLANTING UNDER DIFFERENT LEVELS OF FERTILIZATION
title_fullStr MECHANICAL CHARACTERIZATION AND SHRINKAGE OF Sclerolobium paniculatum Vogel WOOD IN A HOMOGENEOUS PLANTING UNDER DIFFERENT LEVELS OF FERTILIZATION
title_full_unstemmed MECHANICAL CHARACTERIZATION AND SHRINKAGE OF Sclerolobium paniculatum Vogel WOOD IN A HOMOGENEOUS PLANTING UNDER DIFFERENT LEVELS OF FERTILIZATION
title_sort MECHANICAL CHARACTERIZATION AND SHRINKAGE OF Sclerolobium paniculatum Vogel WOOD IN A HOMOGENEOUS PLANTING UNDER DIFFERENT LEVELS OF FERTILIZATION
author Oliveira, Joselito Bonifácio
author_facet Oliveira, Joselito Bonifácio
Vale, Ailton T.
Melo, José Teodoro de
author_role author
author2 Vale, Ailton T.
Melo, José Teodoro de
author2_role author
author
dc.contributor.author.fl_str_mv Oliveira, Joselito Bonifácio
Vale, Ailton T.
Melo, José Teodoro de
dc.subject.por.fl_str_mv characterization
wood
Slerolobium paniculatum.
caracterização
madeira
Slerolobium paniculatum
topic characterization
wood
Slerolobium paniculatum.
caracterização
madeira
Slerolobium paniculatum
description The purposa of this work was to study the influence of fertilization on wood quality of Sclerolobium paniculatum Vogel. A homogeneous planting trial, under different levels of liming and phosphorus, was established by Embrapa-Cerrados 18 years ago in Planaltina, Distrito Federal, Brazil, tropical wood savanna region. Mechanical tests conducted were static bending, parallel compression to grain, shear strength and shrinkage. No significant differences were observed for mechanical properties or for shrinkage, which presented: ¦b = 650kg/cm2, E = 59.877kg/cm2, ¦c = 296kg/cm2 e ¦n = 131kg/cm2. Control treatment showed highest values for shear strength and compression parallel to grain. Too many branches in all trees and also too many knots in lumber were observed. Pruning is recommended for homogeneous planting of Sclerolobium paniculatum to avoid knots in order to be produced wood of superior quality.
publishDate 2006
dc.date.none.fl_str_mv 2006-03-30
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://periodicos.ufsm.br/cienciaflorestal/article/view/1890
10.5902/198050981890
url https://periodicos.ufsm.br/cienciaflorestal/article/view/1890
identifier_str_mv 10.5902/198050981890
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://periodicos.ufsm.br/cienciaflorestal/article/view/1890/1136
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Federal de Santa Maria
publisher.none.fl_str_mv Universidade Federal de Santa Maria
dc.source.none.fl_str_mv Ciência Florestal; Vol. 16 No. 1 (2006); 89-97
Ciência Florestal; v. 16 n. 1 (2006); 89-97
1980-5098
0103-9954
reponame:Ciência Florestal (Online)
instname:Universidade Federal de Santa Maria (UFSM)
instacron:UFSM
instname_str Universidade Federal de Santa Maria (UFSM)
instacron_str UFSM
institution UFSM
reponame_str Ciência Florestal (Online)
collection Ciência Florestal (Online)
repository.name.fl_str_mv Ciência Florestal (Online) - Universidade Federal de Santa Maria (UFSM)
repository.mail.fl_str_mv ||cienciaflorestal@ufsm.br|| cienciaflorestal@gmail.com|| cf@smail.ufsm.br
_version_ 1799944126986190848

Registros relacionados