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dc.contributor.authorSchossler, Thiago Rodrigopt_BR
dc.contributor.authorMarchão, Robélio Leandropt_BR
dc.contributor.authorSantos, Isis Lima dospt_BR
dc.contributor.authorSantos, Djavan Pinheiropt_BR
dc.contributor.authorNóbrega, Júlio César A.pt_BR
dc.contributor.authorSantos, Glenio Guimarãespt_BR
dc.date.accessioned2019-01-02T13:50:01Z-
dc.date.available2019-01-02T13:50:01Z-
dc.date.issued2018pt_BR
dc.identifier.citationSCHOSSLER, THIAGO R. et al . Soil Physical Quality in Agricultural Systems on the Cerrado of Piauí State, Brazil. Anais da Academia Brasileira de Ciências, Rio de Janeiro, v. 90, n. 4, p. 3975-3989, out./dez. 2018. DOI: http://dx.doi.org/10.1590/0001-3765201820180681. Disponível em: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000703975&lng=en&nrm=iso. Acesso em: 19 fev. 2019. pt_BR
dc.identifier.urihttp://repositorio.unb.br/handle/10482/33285-
dc.language.isoenpt_BR
dc.publisherAcademia Brasileira de Ciênciaspt_BR
dc.rightsAcesso Abertopt_BR
dc.titleSoil physical quality in agricultural systems on the Cerrado of Piauí State, Brazilpt_BR
dc.typeArtigopt_BR
dc.subject.keywordSolos - qualidadept_BR
dc.subject.keywordPorosidadept_BR
dc.rights.license(CC BY) - This is an open-access article distributed under the terms of the Creative Commons Attribution License. Fonte: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000703975&lng=en&nrm=iso. Acesso em: 19 fev. 2019.-
dc.identifier.doihttp://dx.doi.org/10.1590/0001-3765201820180681pt_BR
dc.description.abstract1Soil quality is essential for maintaining the sustainability of agro-ecosystems and ecosystem services provided by this natural resource. The present study aimed to assess the physical quality of soil through the characterization of the physical properties in grain production systems in the Southwest region of Piauí State, Brazil. The study was carried out in the Cerrado region of Piauí in four cities in areas of expansion of the agricultural frontier of the state: Baixa Grande do Ribeiro, Sebastião Leal, Uruçuí and Bom Jesus. Soil samples were collected in April 2012, in areas of grain production under conventional and no-tillage systems. Adjacent areas with native vegetation were also sampled as reference. Bulk density, effective saturation, hydraulic conductivity, penetration resistance, porosity and aggregation were measured. Regardless of the type of soil management used, agricultural systems degrade soil physical quality. No-tillage showed higher bulk density, penetration resistance and aggregation, with lower total porosity, macroporosity and hydraulic conductivity. The physical quality of soil in the agricultural areas of the Cerrado region of Piauí was dependent on the soil texture, while silt, clay and organic matter were determinant for soil aggregation, mechanical resistance, total porosity and microporosity.-
dc.description.unidadeFaculdade de Agronomia e Medicina Veterinária (FAV)-
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