SPATIAL DEPENDENCE OF ELECTRICAL CONDUCTIVITY AND CHEMICAL PROPERTIES OF THE SOIL BY ELECTROMAGNETIC INDUCTION
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , |
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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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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1808128381842096128 |