SPATIAL DEPENDENCE OF ELECTRICAL CONDUCTIVITY AND CHEMICAL PROPERTIES OF THE SOIL BY ELECTROMAGNETIC INDUCTION

Detalhes bibliográficos
Autor(a) principal: Machado, Flavia Cristina
Data de Publicação: 2015
Outros Autores: Montanari, Rafael [UNESP], Shiratsuchi, Luciano Shozo, Lovera, Lenon Henrique [UNESP], Lima, Elizeu de Souza [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1590/01000683rbcs20140794
http://hdl.handle.net/11449/158536
Resumo: Brazilian soils have natural high chemical variability; thus, apparent electrical conductivity (ECa) can assist interpretation of crop yield variations. We aimed to select soil chemical properties with the best linear and spatial correlations to explain ECa variation in the soil using a Profiler sensor (EMP-400). The study was carried out in Sidrolandia, MS, Brazil. We analyzed the following variables: electrical conductivity - EC (2, 7, and 15 kHz), organic matter, available K, base saturation, and cation exchange capacity (CEC). Soil EC a was measured with the aid of an all-terrain vehicle, which crossed the entire area in strips spaced at 0.45 m. Soil samples were collected at the 0-20 cm depth with a total of 36 samples within about 70 ha. Classical descriptive analysis was applied to each property via SAS software, and GS(+) for spatial dependence analysis. The equipment was able to simultaneously detect ECa at the different frequencies. It was also possible to establish site-specific management zones through analysis of correlation with chemical properties. We observed that CEC was the property that had the best correlation with ECa at 15 kHz.
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spelling SPATIAL DEPENDENCE OF ELECTRICAL CONDUCTIVITY AND CHEMICAL PROPERTIES OF THE SOIL BY ELECTROMAGNETIC INDUCTIONprecision agricultureelectrical conductivitymanagement zonesBrazilian soils have natural high chemical variability; thus, apparent electrical conductivity (ECa) can assist interpretation of crop yield variations. We aimed to select soil chemical properties with the best linear and spatial correlations to explain ECa variation in the soil using a Profiler sensor (EMP-400). The study was carried out in Sidrolandia, MS, Brazil. We analyzed the following variables: electrical conductivity - EC (2, 7, and 15 kHz), organic matter, available K, base saturation, and cation exchange capacity (CEC). Soil EC a was measured with the aid of an all-terrain vehicle, which crossed the entire area in strips spaced at 0.45 m. Soil samples were collected at the 0-20 cm depth with a total of 36 samples within about 70 ha. Classical descriptive analysis was applied to each property via SAS software, and GS(+) for spatial dependence analysis. The equipment was able to simultaneously detect ECa at the different frequencies. It was also possible to establish site-specific management zones through analysis of correlation with chemical properties. We observed that CEC was the property that had the best correlation with ECa at 15 kHz.Univ Estadual Mato Grosso Sul, Unidade Aquidauana, Programa Posgrad Prod Vegetal, Aquidauana, MS, BrazilUniv Estadual Paulista, Dept Fitossanidade Engn Rural & Solos, Sao Paulo, BrazilEmpresa Brasileira Pesquisa Agr, Ctr Nacl Pesquisa Agrossilvipastoril, Sinop, MG, BrazilUniv Estadual Paulista, Programa Posgrad Sistemas Prod, Sao Paulo, BrazilUniv Estadual Paulista, Dept Fitossanidade Engn Rural & Solos, Sao Paulo, BrazilUniv Estadual Paulista, Programa Posgrad Sistemas Prod, Sao Paulo, BrazilSoc Brasileira De Ciencia Do SoloUniversidade Estadual de Mato Grosso do Sul (UEMS)Universidade Estadual Paulista (Unesp)Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA)Machado, Flavia CristinaMontanari, Rafael [UNESP]Shiratsuchi, Luciano ShozoLovera, Lenon Henrique [UNESP]Lima, Elizeu de Souza [UNESP]2018-11-26T15:28:01Z2018-11-26T15:28:01Z2015-07-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article1112-1120application/pdfhttp://dx.doi.org/10.1590/01000683rbcs20140794Revista Brasileira De Ciencia Do Solo. Vicosa: Soc Brasileira De Ciencia Do Solo, v. 39, n. 4, p. 1112-1120, 2015.0100-0683http://hdl.handle.net/11449/15853610.1590/01000683rbcs20140794S0100-06832015000401112WOS:000362369800018S0100-06832015000401112.pdf06736998678242410000-0002-3557-2362Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengRevista Brasileira De Ciencia Do Solo0,679info:eu-repo/semantics/openAccess2023-10-11T06:02:47Zoai:repositorio.unesp.br:11449/158536Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T14:34:52.095384Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv SPATIAL DEPENDENCE OF ELECTRICAL CONDUCTIVITY AND CHEMICAL PROPERTIES OF THE SOIL BY ELECTROMAGNETIC INDUCTION
title SPATIAL DEPENDENCE OF ELECTRICAL CONDUCTIVITY AND CHEMICAL PROPERTIES OF THE SOIL BY ELECTROMAGNETIC INDUCTION
spellingShingle SPATIAL DEPENDENCE OF ELECTRICAL CONDUCTIVITY AND CHEMICAL PROPERTIES OF THE SOIL BY ELECTROMAGNETIC INDUCTION
Machado, Flavia Cristina
precision agriculture
electrical conductivity
management zones
title_short SPATIAL DEPENDENCE OF ELECTRICAL CONDUCTIVITY AND CHEMICAL PROPERTIES OF THE SOIL BY ELECTROMAGNETIC INDUCTION
title_full SPATIAL DEPENDENCE OF ELECTRICAL CONDUCTIVITY AND CHEMICAL PROPERTIES OF THE SOIL BY ELECTROMAGNETIC INDUCTION
title_fullStr SPATIAL DEPENDENCE OF ELECTRICAL CONDUCTIVITY AND CHEMICAL PROPERTIES OF THE SOIL BY ELECTROMAGNETIC INDUCTION
title_full_unstemmed SPATIAL DEPENDENCE OF ELECTRICAL CONDUCTIVITY AND CHEMICAL PROPERTIES OF THE SOIL BY ELECTROMAGNETIC INDUCTION
title_sort SPATIAL DEPENDENCE OF ELECTRICAL CONDUCTIVITY AND CHEMICAL PROPERTIES OF THE SOIL BY ELECTROMAGNETIC INDUCTION
author Machado, Flavia Cristina
author_facet Machado, Flavia Cristina
Montanari, Rafael [UNESP]
Shiratsuchi, Luciano Shozo
Lovera, Lenon Henrique [UNESP]
Lima, Elizeu de Souza [UNESP]
author_role author
author2 Montanari, Rafael [UNESP]
Shiratsuchi, Luciano Shozo
Lovera, Lenon Henrique [UNESP]
Lima, Elizeu de Souza [UNESP]
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual de Mato Grosso do Sul (UEMS)
Universidade Estadual Paulista (Unesp)
Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA)
dc.contributor.author.fl_str_mv Machado, Flavia Cristina
Montanari, Rafael [UNESP]
Shiratsuchi, Luciano Shozo
Lovera, Lenon Henrique [UNESP]
Lima, Elizeu de Souza [UNESP]
dc.subject.por.fl_str_mv precision agriculture
electrical conductivity
management zones
topic precision agriculture
electrical conductivity
management zones
description Brazilian soils have natural high chemical variability; thus, apparent electrical conductivity (ECa) can assist interpretation of crop yield variations. We aimed to select soil chemical properties with the best linear and spatial correlations to explain ECa variation in the soil using a Profiler sensor (EMP-400). The study was carried out in Sidrolandia, MS, Brazil. We analyzed the following variables: electrical conductivity - EC (2, 7, and 15 kHz), organic matter, available K, base saturation, and cation exchange capacity (CEC). Soil EC a was measured with the aid of an all-terrain vehicle, which crossed the entire area in strips spaced at 0.45 m. Soil samples were collected at the 0-20 cm depth with a total of 36 samples within about 70 ha. Classical descriptive analysis was applied to each property via SAS software, and GS(+) for spatial dependence analysis. The equipment was able to simultaneously detect ECa at the different frequencies. It was also possible to establish site-specific management zones through analysis of correlation with chemical properties. We observed that CEC was the property that had the best correlation with ECa at 15 kHz.
publishDate 2015
dc.date.none.fl_str_mv 2015-07-01
2018-11-26T15:28:01Z
2018-11-26T15:28:01Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1590/01000683rbcs20140794
Revista Brasileira De Ciencia Do Solo. Vicosa: Soc Brasileira De Ciencia Do Solo, v. 39, n. 4, p. 1112-1120, 2015.
0100-0683
http://hdl.handle.net/11449/158536
10.1590/01000683rbcs20140794
S0100-06832015000401112
WOS:000362369800018
S0100-06832015000401112.pdf
0673699867824241
0000-0002-3557-2362
url http://dx.doi.org/10.1590/01000683rbcs20140794
http://hdl.handle.net/11449/158536
identifier_str_mv Revista Brasileira De Ciencia Do Solo. Vicosa: Soc Brasileira De Ciencia Do Solo, v. 39, n. 4, p. 1112-1120, 2015.
0100-0683
10.1590/01000683rbcs20140794
S0100-06832015000401112
WOS:000362369800018
S0100-06832015000401112.pdf
0673699867824241
0000-0002-3557-2362
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Revista Brasileira De Ciencia Do Solo
0,679
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 1112-1120
application/pdf
dc.publisher.none.fl_str_mv Soc Brasileira De Ciencia Do Solo
publisher.none.fl_str_mv Soc Brasileira De Ciencia Do Solo
dc.source.none.fl_str_mv Web of Science
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
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