Boron adsorption in soils from the State of São Paulo, Brazil
Boron adsorption was studied in five representative soils (Rhodic Hapludox, Arenic Paleudalf and three Typic Hapludox) from the State of São Paulo, Brazil. Adsorption was higher in the clayey Oxisols, followed by the Alfisol and the coarser Oxisols. Calcium carbonate promoted an increase in the amou...
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| Format: | Article |
| Language: | English |
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Embrapa Informação Tecnológica
2000-02-01
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| Series: | Pesquisa Agropecuária Brasileira |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2000000200020&tlng=en |
| _version_ | 1819259137001783296 |
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| author | LUÍS REYNALDO FERRACCIÚ ALLEONI OTÁVIO ANTONIO DE CAMARGO |
| author_facet | LUÍS REYNALDO FERRACCIÚ ALLEONI OTÁVIO ANTONIO DE CAMARGO |
| author_sort | LUÍS REYNALDO FERRACCIÚ ALLEONI |
| collection | DOAJ |
| description | Boron adsorption was studied in five representative soils (Rhodic Hapludox, Arenic Paleudalf and three Typic Hapludox) from the State of São Paulo, Brazil. Adsorption was higher in the clayey Oxisols, followed by the Alfisol and the coarser Oxisols. Calcium carbonate promoted an increase in the amount of adsorbed boron in all soils, with the most pronounced effect in the coarser-textured Oxisols. High correlation coefficients were found between adsorbed boron and clay and amorphous aluminum oxide contents and specific surface area (r = 0.79, 0.76 and 0.73, respectively, p < 0.01). Clay content, free aluminum oxide, and hot CaCl2 (0.01 mol L-1)-extracted boron explained 93% of the variation of adsorbed boron. Langmuir and Freundlich isotherms fitted well to the adsorbed data, and highest values for maximum boron adsorption were found in clayey soils, which were significantly correlated with contents of total, free and amorphous iron and aluminum oxides, as well with the physical attributes. Ninety four percent of the variation in the maximum adsorption could be related to the free iron content. |
| first_indexed | 2024-12-23T19:05:13Z |
| format | Article |
| id | doaj.art-a67157209011401b960ad6192b114499 |
| institution | Directory Open Access Journal |
| issn | 1678-3921 |
| language | English |
| last_indexed | 2024-12-23T19:05:13Z |
| publishDate | 2000-02-01 |
| publisher | Embrapa Informação Tecnológica |
| record_format | Article |
| series | Pesquisa Agropecuária Brasileira |
| spelling | doaj.art-a67157209011401b960ad6192b1144992022-12-21T17:34:37ZengEmbrapa Informação TecnológicaPesquisa Agropecuária Brasileira1678-39212000-02-0135241342110.1590/S0100-204X2000000200020Boron adsorption in soils from the State of São Paulo, BrazilLUÍS REYNALDO FERRACCIÚ ALLEONI0OTÁVIO ANTONIO DE CAMARGO1Universidade de São PauloInstituto AgronômicoBoron adsorption was studied in five representative soils (Rhodic Hapludox, Arenic Paleudalf and three Typic Hapludox) from the State of São Paulo, Brazil. Adsorption was higher in the clayey Oxisols, followed by the Alfisol and the coarser Oxisols. Calcium carbonate promoted an increase in the amount of adsorbed boron in all soils, with the most pronounced effect in the coarser-textured Oxisols. High correlation coefficients were found between adsorbed boron and clay and amorphous aluminum oxide contents and specific surface area (r = 0.79, 0.76 and 0.73, respectively, p < 0.01). Clay content, free aluminum oxide, and hot CaCl2 (0.01 mol L-1)-extracted boron explained 93% of the variation of adsorbed boron. Langmuir and Freundlich isotherms fitted well to the adsorbed data, and highest values for maximum boron adsorption were found in clayey soils, which were significantly correlated with contents of total, free and amorphous iron and aluminum oxides, as well with the physical attributes. Ninety four percent of the variation in the maximum adsorption could be related to the free iron content.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2000000200020&tlng=entropical soilssimple correlationmultiple regression analysis |
| spellingShingle | LUÍS REYNALDO FERRACCIÚ ALLEONI OTÁVIO ANTONIO DE CAMARGO Boron adsorption in soils from the State of São Paulo, Brazil Pesquisa Agropecuária Brasileira tropical soils simple correlation multiple regression analysis |
| title | Boron adsorption in soils from the State of São Paulo, Brazil |
| title_full | Boron adsorption in soils from the State of São Paulo, Brazil |
| title_fullStr | Boron adsorption in soils from the State of São Paulo, Brazil |
| title_full_unstemmed | Boron adsorption in soils from the State of São Paulo, Brazil |
| title_short | Boron adsorption in soils from the State of São Paulo, Brazil |
| title_sort | boron adsorption in soils from the state of sao paulo brazil |
| topic | tropical soils simple correlation multiple regression analysis |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2000000200020&tlng=en |
| work_keys_str_mv | AT luisreynaldoferracciualleoni boronadsorptioninsoilsfromthestateofsaopaulobrazil AT otavioantoniodecamargo boronadsorptioninsoilsfromthestateofsaopaulobrazil |