Comparison of methods to evaluate soil bulk density - doi: 10.4025/actasciagron.v33i1.5507

Detalhes bibliográficos
Autor(a) principal: Pires, Luiz Fernando
Data de Publicação: 2011
Outros Autores: Rosa, Jadir Aparecido, Timm, Luís Carlos
Tipo de documento: Artigo
Idioma: por
Título da fonte: Acta Scientiarum. Agronomy (Online)
Texto Completo: http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/5507
Resumo: Soil bulk density (ds) is traditionally used as an indicator of soil structure and soil compaction. The objective of this work was to compare ds values obtained through conventional methods like paraffin sealed clod (MTP) and volumetric ring (MAV), and nuclear methods like computerized tomography (MTC), gamma-ray attenuation (MAG) and neutron-gamma surface gauge (MSN). Soil samples were collected in areas under conventional tillage and no-tillage systems. Sixteen samples were collected in the soil surface layer for the analyses by the MAV, MTP, MTC, and MAG. For the MSN, sixteen readings were carried out throughout the experimental area. The highest ds values for the conventional tillage system were obtained for the MTP, MPC, and MAG, without significant differences. Also the statistic test indicates that the lowest ds values obtained for the MSN and MAV did not differ significantly. Regarding to the no-tillage system, only the MAV and MAG had been compared, whose ds values did differ significantly.
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spelling Comparison of methods to evaluate soil bulk density - doi: 10.4025/actasciagron.v33i1.5507Comparação de métodos de medida da densidade do solo - doi: 10.4025/actasciagron.v33i1.5507soil physics propertiesneutron-gamma surface gaugegamma-ray attenuationvolumetric ringparaffin sealed clodscomputerized tomographypropriedades físicas do solosonda de superfície nêutron-gamaatenuação de raios gamaanel volumétricotorrão parafinadotomografia computadorizada5.01.01.02-1Soil bulk density (ds) is traditionally used as an indicator of soil structure and soil compaction. The objective of this work was to compare ds values obtained through conventional methods like paraffin sealed clod (MTP) and volumetric ring (MAV), and nuclear methods like computerized tomography (MTC), gamma-ray attenuation (MAG) and neutron-gamma surface gauge (MSN). Soil samples were collected in areas under conventional tillage and no-tillage systems. Sixteen samples were collected in the soil surface layer for the analyses by the MAV, MTP, MTC, and MAG. For the MSN, sixteen readings were carried out throughout the experimental area. The highest ds values for the conventional tillage system were obtained for the MTP, MPC, and MAG, without significant differences. Also the statistic test indicates that the lowest ds values obtained for the MSN and MAV did not differ significantly. Regarding to the no-tillage system, only the MAV and MAG had been compared, whose ds values did differ significantly.A densidade do solo (ds) tem sido usada como um parâmetro importante de caracterização física da estrutura do solo e como um indicador de sua compactação. Este trabalho teve como objetivo comparar os valores de ds obtidos através de métodos convencionais, como torrão parafinado (MTP) e anel volumétrico (MAV), e nucleares, como tomografia computadorizada (MTC), atenuação gama (MAG) e sonda de superfície nêutron-gama (MSN). Foram feitas coletas de amostras em áreas submetidas às práticas de manejo de plantio convencional e plantio direto. Para as análises pelos MAV, MTP, MTC e MAG foram coletadas 16 amostras na camada superficial do solo e para o MSN foram realizadas leituras em 16 pontos distintos ao longo da área experimental. Os maiores valores de ds foram obtidos para os MTP, MTC e MAG (plantio convencional) não diferindo estatisticamente entre si. Os menores valores de ds foram obtidos para os MSN e MAV não diferindo estatisticamente entre si. Com relação ao plantio direto foram comparados somente os MAV e MAG com os valores de ds diferindo estatisticamente entre si.Universidade Estadual de Maringá2011-02-16info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionPesquisa de Campo e Laboratórioapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/550710.4025/actasciagron.v33i1.5507Acta Scientiarum. Agronomy; Vol 33 No 1 (2011); 161-170Acta Scientiarum. Agronomy; v. 33 n. 1 (2011); 161-1701807-86211679-9275reponame:Acta Scientiarum. Agronomy (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMporhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/5507/5507Pires, Luiz FernandoRosa, Jadir AparecidoTimm, Luís Carlosinfo:eu-repo/semantics/openAccess2022-11-23T18:38:11Zoai:periodicos.uem.br/ojs:article/5507Revistahttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgronPUBhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/oaiactaagron@uem.br||actaagron@uem.br|| edamasio@uem.br1807-86211679-9275opendoar:2022-11-23T18:38:11Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM)false
dc.title.none.fl_str_mv Comparison of methods to evaluate soil bulk density - doi: 10.4025/actasciagron.v33i1.5507
Comparação de métodos de medida da densidade do solo - doi: 10.4025/actasciagron.v33i1.5507
title Comparison of methods to evaluate soil bulk density - doi: 10.4025/actasciagron.v33i1.5507
spellingShingle Comparison of methods to evaluate soil bulk density - doi: 10.4025/actasciagron.v33i1.5507
Pires, Luiz Fernando
soil physics properties
neutron-gamma surface gauge
gamma-ray attenuation
volumetric ring
paraffin sealed clods
computerized tomography
propriedades físicas do solo
sonda de superfície nêutron-gama
atenuação de raios gama
anel volumétrico
torrão parafinado
tomografia computadorizada
5.01.01.02-1
title_short Comparison of methods to evaluate soil bulk density - doi: 10.4025/actasciagron.v33i1.5507
title_full Comparison of methods to evaluate soil bulk density - doi: 10.4025/actasciagron.v33i1.5507
title_fullStr Comparison of methods to evaluate soil bulk density - doi: 10.4025/actasciagron.v33i1.5507
title_full_unstemmed Comparison of methods to evaluate soil bulk density - doi: 10.4025/actasciagron.v33i1.5507
title_sort Comparison of methods to evaluate soil bulk density - doi: 10.4025/actasciagron.v33i1.5507
author Pires, Luiz Fernando
author_facet Pires, Luiz Fernando
Rosa, Jadir Aparecido
Timm, Luís Carlos
author_role author
author2 Rosa, Jadir Aparecido
Timm, Luís Carlos
author2_role author
author
dc.contributor.author.fl_str_mv Pires, Luiz Fernando
Rosa, Jadir Aparecido
Timm, Luís Carlos
dc.subject.por.fl_str_mv soil physics properties
neutron-gamma surface gauge
gamma-ray attenuation
volumetric ring
paraffin sealed clods
computerized tomography
propriedades físicas do solo
sonda de superfície nêutron-gama
atenuação de raios gama
anel volumétrico
torrão parafinado
tomografia computadorizada
5.01.01.02-1
topic soil physics properties
neutron-gamma surface gauge
gamma-ray attenuation
volumetric ring
paraffin sealed clods
computerized tomography
propriedades físicas do solo
sonda de superfície nêutron-gama
atenuação de raios gama
anel volumétrico
torrão parafinado
tomografia computadorizada
5.01.01.02-1
description Soil bulk density (ds) is traditionally used as an indicator of soil structure and soil compaction. The objective of this work was to compare ds values obtained through conventional methods like paraffin sealed clod (MTP) and volumetric ring (MAV), and nuclear methods like computerized tomography (MTC), gamma-ray attenuation (MAG) and neutron-gamma surface gauge (MSN). Soil samples were collected in areas under conventional tillage and no-tillage systems. Sixteen samples were collected in the soil surface layer for the analyses by the MAV, MTP, MTC, and MAG. For the MSN, sixteen readings were carried out throughout the experimental area. The highest ds values for the conventional tillage system were obtained for the MTP, MPC, and MAG, without significant differences. Also the statistic test indicates that the lowest ds values obtained for the MSN and MAV did not differ significantly. Regarding to the no-tillage system, only the MAV and MAG had been compared, whose ds values did differ significantly.
publishDate 2011
dc.date.none.fl_str_mv 2011-02-16
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Pesquisa de Campo e Laboratório
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/5507
10.4025/actasciagron.v33i1.5507
url http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/5507
identifier_str_mv 10.4025/actasciagron.v33i1.5507
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/5507/5507
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 Estadual de Maringá
publisher.none.fl_str_mv Universidade Estadual de Maringá
dc.source.none.fl_str_mv Acta Scientiarum. Agronomy; Vol 33 No 1 (2011); 161-170
Acta Scientiarum. Agronomy; v. 33 n. 1 (2011); 161-170
1807-8621
1679-9275
reponame:Acta Scientiarum. Agronomy (Online)
instname:Universidade Estadual de Maringá (UEM)
instacron:UEM
instname_str Universidade Estadual de Maringá (UEM)
instacron_str UEM
institution UEM
reponame_str Acta Scientiarum. Agronomy (Online)
collection Acta Scientiarum. Agronomy (Online)
repository.name.fl_str_mv Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM)
repository.mail.fl_str_mv actaagron@uem.br||actaagron@uem.br|| edamasio@uem.br
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