Moisture content effect in the relationship between apparent electrical conductivity and soil attributes

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dc.creatorMarcelo Marques Costa
dc.creatorDaniel Marçal de Queiroz
dc.creatorFrancisco de Assis de Carvalho Pinto
dc.creatorElton Fialho dos Reis
dc.creatorNerilson Terra Santos
dc.date2014
dc.date.accessioned2026-07-07T03:55:29Z
dc.descriptionTo map the spatial variability of a field to define the variable rate application, an intensive sampling of the soil-plant system is necessary. The a pparent soil electrical conductivity (ECa) has been used for soil mapping because it co rrelates well with soil attributes, allows for dense sampling and can be obtained at low cost. However, ECa is influenced by soil moisture content, and the variability of this attribute can reduce the reliability of the ECa maps to explain the physical and che mical soil attributes. The objective of this study was to identify conditions that maximize the correlations between the ECa and the soil attributes. The results show that the mean soil moisture content of soil sampled on different dates was correlated with the mean of the ECa. The ideal time for measuring ECa occurred when the mean moisture content of the soil was higher. In this condition, the coefficient of variation for the soil moisture content was lower, there was no correlation between ECa and soil moisture content, and ECa was more correlated with other soil attributes evaluated in this work.
dc.formatapplication/pdf
dc.identifier1679-9275
dc.identifierhttps://www.redalyc.org/articulo.oa?id=303031660001
dc.identifier.urihttp://hdl.handle.net/123456789/447577
dc.languageen
dc.publisherUniversidade Estadual de Maringá
dc.relationhttp://www.redalyc.org/revista.oa?id=3030
dc.rightsActa Scientiarum. Agronomy
dc.sourceActa Scientiarum. Agronomy (Brasil) Num.4 Vol.36
dc.subjectAgrociencias
dc.titleMoisture content effect in the relationship between apparent electrical conductivity and soil attributes
dc.typeartículo científico

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Acta Scientiarum. Agronomy - Universidade Estadual de Maringá