Spatial variability of soil pH sampled by two methodologies used in precision agriculture in farms under crop rotation

Detalhes bibliográficos
Autor(a) principal: Ferraz, Gabriel Araújo e Silva
Data de Publicação: 2019
Outros Autores: Barbosa, Brenon Diennevan Souza, Reynaldo, Étore Francisco, Santos, Sthéfany Airane dos, Gonçalves, Jose Roberto Moreira Ribeiro, Ferraz, Patrícia Ferreira Ponciano
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFLA
Texto Completo: http://repositorio.ufla.br/jspui/handle/1/40318
Resumo: This study aimed to characterize the spatial variability of pH in soils of two farms in the state of Paraná, Brazil, based on two different sampling methods used in precision agriculture, by means of geostatistical analyzes. The first method of sampling the pH grid consisted in the collection of soil samples by the traditional method (1 point / ha). The second method of pH determination was by on-the-go soil sensor (200 points / ha). The spherical model was better suited to most semivariograms, regardless of the sampling method. After adjusting the semivariograms for soil pH determination methods, thematic maps were made using normal kriging. The best spatial distribution of pH was obtained where the attribute was sampled by the on-the-go sensor. The number of pH samples collected and the sampling method influenced the visual representation of pH variability.
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spelling Spatial variability of soil pH sampled by two methodologies used in precision agriculture in farms under crop rotationVariabilidad espacial del pH del suelo muestreado por dos metodologías utilizadas en agricultura de precisión en granjas bajo rotación de cultivosSpatial variabilityMobile contact sensorGrid samplingGeostatisticsVariabilidade espacialSensor de contato móvelAmostragem em gradeGeoestatísticaSensor de contacto móvilMuestreo en cuadrículaThis study aimed to characterize the spatial variability of pH in soils of two farms in the state of Paraná, Brazil, based on two different sampling methods used in precision agriculture, by means of geostatistical analyzes. The first method of sampling the pH grid consisted in the collection of soil samples by the traditional method (1 point / ha). The second method of pH determination was by on-the-go soil sensor (200 points / ha). The spherical model was better suited to most semivariograms, regardless of the sampling method. After adjusting the semivariograms for soil pH determination methods, thematic maps were made using normal kriging. The best spatial distribution of pH was obtained where the attribute was sampled by the on-the-go sensor. The number of pH samples collected and the sampling method influenced the visual representation of pH variability.El objetivo de este estudio fue caracterizar la variabilidad espacial del pH para suelos de dos fincas en el estado de Paraná, Brasil, con base en dos métodos diferentes de muestreo utilizados en agricultura de precisión, mediante análisis geoestaddísticos. El primero método de muestreo del pH consistió en la colecta de muestras de suelo por ele método tradicional (1punto/ha). El segundo método de determinación del pH fue el sensor de suelo dinâmico (200 puntos / ha). El modelo esférico fue más adecuado para la mayoría de los semivariogramas, independientemente del método de muestreo. La mejor distribución espacial fue obtenida por la cualidad del muestreado del sensor de suelo dinâmico. El número de muestras del pH colectadas y el método de muestreo influyeron en la representación visual de la variabilidad del pH.Universidad Nacional de Colombia2020-04-24T13:12:00Z2020-04-24T13:12:00Z2019-04info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfFERRAZ, G. A. e S. Spatial variability of soil pH sampled by two methodologies used in precision agriculture in farms under crop rotation. DYNA, Medellín, v. 86, n. 209, p. 289-297, Apr./June 2019.http://repositorio.ufla.br/jspui/handle/1/40318DYNAreponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAAttribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessFerraz, Gabriel Araújo e SilvaBarbosa, Brenon Diennevan SouzaReynaldo, Étore FranciscoSantos, Sthéfany Airane dosGonçalves, Jose Roberto Moreira RibeiroFerraz, Patrícia Ferreira Poncianoeng2023-05-02T19:49:59Zoai:localhost:1/40318Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2023-05-02T19:49:59Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false
dc.title.none.fl_str_mv Spatial variability of soil pH sampled by two methodologies used in precision agriculture in farms under crop rotation
Variabilidad espacial del pH del suelo muestreado por dos metodologías utilizadas en agricultura de precisión en granjas bajo rotación de cultivos
title Spatial variability of soil pH sampled by two methodologies used in precision agriculture in farms under crop rotation
spellingShingle Spatial variability of soil pH sampled by two methodologies used in precision agriculture in farms under crop rotation
Ferraz, Gabriel Araújo e Silva
Spatial variability
Mobile contact sensor
Grid sampling
Geostatistics
Variabilidade espacial
Sensor de contato móvel
Amostragem em grade
Geoestatística
Sensor de contacto móvil
Muestreo en cuadrícula
title_short Spatial variability of soil pH sampled by two methodologies used in precision agriculture in farms under crop rotation
title_full Spatial variability of soil pH sampled by two methodologies used in precision agriculture in farms under crop rotation
title_fullStr Spatial variability of soil pH sampled by two methodologies used in precision agriculture in farms under crop rotation
title_full_unstemmed Spatial variability of soil pH sampled by two methodologies used in precision agriculture in farms under crop rotation
title_sort Spatial variability of soil pH sampled by two methodologies used in precision agriculture in farms under crop rotation
author Ferraz, Gabriel Araújo e Silva
author_facet Ferraz, Gabriel Araújo e Silva
Barbosa, Brenon Diennevan Souza
Reynaldo, Étore Francisco
Santos, Sthéfany Airane dos
Gonçalves, Jose Roberto Moreira Ribeiro
Ferraz, Patrícia Ferreira Ponciano
author_role author
author2 Barbosa, Brenon Diennevan Souza
Reynaldo, Étore Francisco
Santos, Sthéfany Airane dos
Gonçalves, Jose Roberto Moreira Ribeiro
Ferraz, Patrícia Ferreira Ponciano
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Ferraz, Gabriel Araújo e Silva
Barbosa, Brenon Diennevan Souza
Reynaldo, Étore Francisco
Santos, Sthéfany Airane dos
Gonçalves, Jose Roberto Moreira Ribeiro
Ferraz, Patrícia Ferreira Ponciano
dc.subject.por.fl_str_mv Spatial variability
Mobile contact sensor
Grid sampling
Geostatistics
Variabilidade espacial
Sensor de contato móvel
Amostragem em grade
Geoestatística
Sensor de contacto móvil
Muestreo en cuadrícula
topic Spatial variability
Mobile contact sensor
Grid sampling
Geostatistics
Variabilidade espacial
Sensor de contato móvel
Amostragem em grade
Geoestatística
Sensor de contacto móvil
Muestreo en cuadrícula
description This study aimed to characterize the spatial variability of pH in soils of two farms in the state of Paraná, Brazil, based on two different sampling methods used in precision agriculture, by means of geostatistical analyzes. The first method of sampling the pH grid consisted in the collection of soil samples by the traditional method (1 point / ha). The second method of pH determination was by on-the-go soil sensor (200 points / ha). The spherical model was better suited to most semivariograms, regardless of the sampling method. After adjusting the semivariograms for soil pH determination methods, thematic maps were made using normal kriging. The best spatial distribution of pH was obtained where the attribute was sampled by the on-the-go sensor. The number of pH samples collected and the sampling method influenced the visual representation of pH variability.
publishDate 2019
dc.date.none.fl_str_mv 2019-04
2020-04-24T13:12:00Z
2020-04-24T13:12:00Z
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 FERRAZ, G. A. e S. Spatial variability of soil pH sampled by two methodologies used in precision agriculture in farms under crop rotation. DYNA, Medellín, v. 86, n. 209, p. 289-297, Apr./June 2019.
http://repositorio.ufla.br/jspui/handle/1/40318
identifier_str_mv FERRAZ, G. A. e S. Spatial variability of soil pH sampled by two methodologies used in precision agriculture in farms under crop rotation. DYNA, Medellín, v. 86, n. 209, p. 289-297, Apr./June 2019.
url http://repositorio.ufla.br/jspui/handle/1/40318
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidad Nacional de Colombia
publisher.none.fl_str_mv Universidad Nacional de Colombia
dc.source.none.fl_str_mv DYNA
reponame:Repositório Institucional da UFLA
instname:Universidade Federal de Lavras (UFLA)
instacron:UFLA
instname_str Universidade Federal de Lavras (UFLA)
instacron_str UFLA
institution UFLA
reponame_str Repositório Institucional da UFLA
collection Repositório Institucional da UFLA
repository.name.fl_str_mv Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)
repository.mail.fl_str_mv nivaldo@ufla.br || repositorio.biblioteca@ufla.br
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