Pedotransfer functions for adsorbed phosphorus evaluations using magnetic susceptibility for mapping purposes
Autor(a) principal: | |
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Data de Publicação: | 2023 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1007/s11119-023-10030-y http://hdl.handle.net/11449/247493 |
Resumo: | This study evaluated the spatial variability of magnetic minerals and the potential of mass-specific magnetic susceptibility (χlf) to recognize minimum areas of phosphorus adsorbed (Pads). In an area of 443 ha cultivated with sugar cane in the state of São Paulo, 84 soil samples were collected at a depth range of 0.0–0.20 m. Analysis of mass-specific magnetic susceptibility at low (χlf) and high (χhf) frequencies was performed in all soil samples. Characterization of ferrimagnetic minerals was carried out by X-ray diffraction (XRD) and the chemical distinction between lithogenic (magnetite-Mt) and pedogenic (maghemite-Mh) ferrimagnetic minerals was determined by χlf before and after chemical reduction by citrate-bicarbonate-dithionite (CBD), with subsequent determination of Pads. The analytical results were evaluated by descriptive analysis and the spatial pattern was assessed by applying the geostatistical technique. χlf differentiated soils from their respective parent material even under conditions of high weathering and lithologic complexity. Positive linear correlations between Pads and clay (R2 = 0.77; p < 0.01), Pads and χlf (R2 = 0.86; p < 0.01), and Pads and Mh (R2 = 0.84; p < 0.01) indicated the use of χlf as a component of pedotransfer functions (PTF) for indirect quantification of Pads in the soil. Quantification of Mh and Mt by χlf was more sensitive than by XRD. The spatial pattern of ferrimagnetic minerals indicated that Mh originated from the direct oxidation of Mt. Soil χlf was sensitive to the spatial variability of Pads and might have assisted with the identification of minimum areas of phosphate fertilization in soils under lithologic complexes. |
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Repositório Institucional da UNESP |
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Pedotransfer functions for adsorbed phosphorus evaluations using magnetic susceptibility for mapping purposesIron oxideMaghemiteMagnetiteMagnetometerPedometricsSpatial variabilityThis study evaluated the spatial variability of magnetic minerals and the potential of mass-specific magnetic susceptibility (χlf) to recognize minimum areas of phosphorus adsorbed (Pads). In an area of 443 ha cultivated with sugar cane in the state of São Paulo, 84 soil samples were collected at a depth range of 0.0–0.20 m. Analysis of mass-specific magnetic susceptibility at low (χlf) and high (χhf) frequencies was performed in all soil samples. Characterization of ferrimagnetic minerals was carried out by X-ray diffraction (XRD) and the chemical distinction between lithogenic (magnetite-Mt) and pedogenic (maghemite-Mh) ferrimagnetic minerals was determined by χlf before and after chemical reduction by citrate-bicarbonate-dithionite (CBD), with subsequent determination of Pads. The analytical results were evaluated by descriptive analysis and the spatial pattern was assessed by applying the geostatistical technique. χlf differentiated soils from their respective parent material even under conditions of high weathering and lithologic complexity. Positive linear correlations between Pads and clay (R2 = 0.77; p < 0.01), Pads and χlf (R2 = 0.86; p < 0.01), and Pads and Mh (R2 = 0.84; p < 0.01) indicated the use of χlf as a component of pedotransfer functions (PTF) for indirect quantification of Pads in the soil. Quantification of Mh and Mt by χlf was more sensitive than by XRD. The spatial pattern of ferrimagnetic minerals indicated that Mh originated from the direct oxidation of Mt. Soil χlf was sensitive to the spatial variability of Pads and might have assisted with the identification of minimum areas of phosphate fertilization in soils under lithologic complexes.College of Agriculture “Luiz de Queiroz” Soil Science and Plant Nutrition (ESALQ/USP) University of São Paulo, SPRondonópolis Federal University (UFR), MTCenter of Agrarian Sciences University of Marília (UNIMAR), SPSchool of Agricultural and Veterinary Sciences State University of São Paulo “Júlio de Mesquita Filho” (UNESP), SPSchool of Agricultural and Veterinary Sciences State University of São Paulo “Júlio de Mesquita Filho” (UNESP), SPUniversidade de São Paulo (USP)Rondonópolis Federal University (UFR)University of Marília (UNIMAR)Universidade Estadual Paulista (UNESP)da Silva, Luis Fernando VieiraSilva, Laércio Santosde Bortoli Teixeira, DanielSiansi, Frederico Luiz [UNESP]França, Ana Beatriz Coelho [UNESP]Júnior, José Marques [UNESP]2023-07-29T13:17:32Z2023-07-29T13:17:32Z2023-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1007/s11119-023-10030-yPrecision Agriculture.1573-16181385-2256http://hdl.handle.net/11449/24749310.1007/s11119-023-10030-y2-s2.0-85160718353Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPrecision Agricultureinfo:eu-repo/semantics/openAccess2023-07-29T13:17:32Zoai:repositorio.unesp.br:11449/247493Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-07-29T13:17:32Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Pedotransfer functions for adsorbed phosphorus evaluations using magnetic susceptibility for mapping purposes |
title |
Pedotransfer functions for adsorbed phosphorus evaluations using magnetic susceptibility for mapping purposes |
spellingShingle |
Pedotransfer functions for adsorbed phosphorus evaluations using magnetic susceptibility for mapping purposes da Silva, Luis Fernando Vieira Iron oxide Maghemite Magnetite Magnetometer Pedometrics Spatial variability |
title_short |
Pedotransfer functions for adsorbed phosphorus evaluations using magnetic susceptibility for mapping purposes |
title_full |
Pedotransfer functions for adsorbed phosphorus evaluations using magnetic susceptibility for mapping purposes |
title_fullStr |
Pedotransfer functions for adsorbed phosphorus evaluations using magnetic susceptibility for mapping purposes |
title_full_unstemmed |
Pedotransfer functions for adsorbed phosphorus evaluations using magnetic susceptibility for mapping purposes |
title_sort |
Pedotransfer functions for adsorbed phosphorus evaluations using magnetic susceptibility for mapping purposes |
author |
da Silva, Luis Fernando Vieira |
author_facet |
da Silva, Luis Fernando Vieira Silva, Laércio Santos de Bortoli Teixeira, Daniel Siansi, Frederico Luiz [UNESP] França, Ana Beatriz Coelho [UNESP] Júnior, José Marques [UNESP] |
author_role |
author |
author2 |
Silva, Laércio Santos de Bortoli Teixeira, Daniel Siansi, Frederico Luiz [UNESP] França, Ana Beatriz Coelho [UNESP] Júnior, José Marques [UNESP] |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade de São Paulo (USP) Rondonópolis Federal University (UFR) University of Marília (UNIMAR) Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
da Silva, Luis Fernando Vieira Silva, Laércio Santos de Bortoli Teixeira, Daniel Siansi, Frederico Luiz [UNESP] França, Ana Beatriz Coelho [UNESP] Júnior, José Marques [UNESP] |
dc.subject.por.fl_str_mv |
Iron oxide Maghemite Magnetite Magnetometer Pedometrics Spatial variability |
topic |
Iron oxide Maghemite Magnetite Magnetometer Pedometrics Spatial variability |
description |
This study evaluated the spatial variability of magnetic minerals and the potential of mass-specific magnetic susceptibility (χlf) to recognize minimum areas of phosphorus adsorbed (Pads). In an area of 443 ha cultivated with sugar cane in the state of São Paulo, 84 soil samples were collected at a depth range of 0.0–0.20 m. Analysis of mass-specific magnetic susceptibility at low (χlf) and high (χhf) frequencies was performed in all soil samples. Characterization of ferrimagnetic minerals was carried out by X-ray diffraction (XRD) and the chemical distinction between lithogenic (magnetite-Mt) and pedogenic (maghemite-Mh) ferrimagnetic minerals was determined by χlf before and after chemical reduction by citrate-bicarbonate-dithionite (CBD), with subsequent determination of Pads. The analytical results were evaluated by descriptive analysis and the spatial pattern was assessed by applying the geostatistical technique. χlf differentiated soils from their respective parent material even under conditions of high weathering and lithologic complexity. Positive linear correlations between Pads and clay (R2 = 0.77; p < 0.01), Pads and χlf (R2 = 0.86; p < 0.01), and Pads and Mh (R2 = 0.84; p < 0.01) indicated the use of χlf as a component of pedotransfer functions (PTF) for indirect quantification of Pads in the soil. Quantification of Mh and Mt by χlf was more sensitive than by XRD. The spatial pattern of ferrimagnetic minerals indicated that Mh originated from the direct oxidation of Mt. Soil χlf was sensitive to the spatial variability of Pads and might have assisted with the identification of minimum areas of phosphate fertilization in soils under lithologic complexes. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-07-29T13:17:32Z 2023-07-29T13:17:32Z 2023-01-01 |
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/10.1007/s11119-023-10030-y Precision Agriculture. 1573-1618 1385-2256 http://hdl.handle.net/11449/247493 10.1007/s11119-023-10030-y 2-s2.0-85160718353 |
url |
http://dx.doi.org/10.1007/s11119-023-10030-y http://hdl.handle.net/11449/247493 |
identifier_str_mv |
Precision Agriculture. 1573-1618 1385-2256 10.1007/s11119-023-10030-y 2-s2.0-85160718353 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Precision Agriculture |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus 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 |
|
_version_ |
1799965244537176064 |