Phosphate fixation in soils from the state of Rio de Janeiro
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Data de Publicação: | 2014 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Pesquisa Agropecuária Brasileira (Online) |
Texto Completo: | https://seer.sct.embrapa.br/index.php/pab/article/view/15981 |
Resumo: | The fixation of phosphate was studied using samples of forty soils from the state of Rio de Janeiro. The soils were equilibrated with solution of KH2PO4 10-3 M, and the fixed phosphate were determined by the difference between the initial and final concentration of solution. The phosphate fixation varied from 0.05 to 1.89 mmols/100 g of soil. These limits corresponded to 1 to 37,8% of the applied phosphate, respectively, with averages of 23.5% for the Red-Yellow Latosols, 21.5% for the Hydromorphics and Alluvials, 16.3% for the Red-Yellow Podzolics and 4.7% for the soils derived from the sediments of the terciary ("Tabuleiro" soils). The phosphate fixation values, in percentage, were closely correlated with the amounts of clay, moisture, organic matter, oxy-hydroxyds of aluminum and pH in KCI. |
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Phosphate fixation in soils from the state of Rio de JaneiroFixação de fósforo em solos do estado do Rio de Janeiroretention capacity; Yellow Red Latosols, "tabuleiro" soilscapacidade de retenção; Latossolos Vermelho-Amarelos; solos de tabuleiroThe fixation of phosphate was studied using samples of forty soils from the state of Rio de Janeiro. The soils were equilibrated with solution of KH2PO4 10-3 M, and the fixed phosphate were determined by the difference between the initial and final concentration of solution. The phosphate fixation varied from 0.05 to 1.89 mmols/100 g of soil. These limits corresponded to 1 to 37,8% of the applied phosphate, respectively, with averages of 23.5% for the Red-Yellow Latosols, 21.5% for the Hydromorphics and Alluvials, 16.3% for the Red-Yellow Podzolics and 4.7% for the soils derived from the sediments of the terciary ("Tabuleiro" soils). The phosphate fixation values, in percentage, were closely correlated with the amounts of clay, moisture, organic matter, oxy-hydroxyds of aluminum and pH in KCI.Num experimento de laboratório foi estudada a capacidade de fixação de fósforo em solos do Estado do Rio de Janeiro. Os solos foram equilibrados com soluções de KH2PO4 10-3 M e o fosfato fixado foi determinado pela diferença entre as concentrações inicial e final da solução em equilíbrio. Considerando todos os solos, a variação na capacidade de retenção foi de 0,05 a 1,89 mmol/ 100 g de solo, o que corresponde às percentagens, de 1,0 a 37,8% do fósforo aplicado, com médias de 23,5% para os Latossolos Vermelho-Amarelos, 21,5% para os Hidromórficos e Aluviais, 16,3% para os Podzólicos Vermelho-Amarelos e 4,7% para os derivados de sedimentos do terciário (solos de tabuleiro). Os valores de fixação, em percentagem, foram correlacionados com características químicas e físicas dos solos. Correlações lineares altamente significativas foram obtidas com o conteúdo de argila, equivalente de umidade, matéria orgânica, oxi-hidróxidos de ferro e alumínio e pH em KCI.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraAlmeida, Dejair Lopes deVelloso, Ary Carlos X.2014-04-16info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/15981Pesquisa Agropecuaria Brasileira; v.17, n.7, jul. 1982; 1023-1029Pesquisa Agropecuária Brasileira; v.17, n.7, jul. 1982; 1023-10291678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/15981/10105info:eu-repo/semantics/openAccess2014-04-16T16:21:37Zoai:ojs.seer.sct.embrapa.br:article/15981Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-04-16T16:21:37Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Phosphate fixation in soils from the state of Rio de Janeiro Fixação de fósforo em solos do estado do Rio de Janeiro |
title |
Phosphate fixation in soils from the state of Rio de Janeiro |
spellingShingle |
Phosphate fixation in soils from the state of Rio de Janeiro Almeida, Dejair Lopes de retention capacity; Yellow Red Latosols, "tabuleiro" soils capacidade de retenção; Latossolos Vermelho-Amarelos; solos de tabuleiro |
title_short |
Phosphate fixation in soils from the state of Rio de Janeiro |
title_full |
Phosphate fixation in soils from the state of Rio de Janeiro |
title_fullStr |
Phosphate fixation in soils from the state of Rio de Janeiro |
title_full_unstemmed |
Phosphate fixation in soils from the state of Rio de Janeiro |
title_sort |
Phosphate fixation in soils from the state of Rio de Janeiro |
author |
Almeida, Dejair Lopes de |
author_facet |
Almeida, Dejair Lopes de Velloso, Ary Carlos X. |
author_role |
author |
author2 |
Velloso, Ary Carlos X. |
author2_role |
author |
dc.contributor.none.fl_str_mv |
|
dc.contributor.author.fl_str_mv |
Almeida, Dejair Lopes de Velloso, Ary Carlos X. |
dc.subject.por.fl_str_mv |
retention capacity; Yellow Red Latosols, "tabuleiro" soils capacidade de retenção; Latossolos Vermelho-Amarelos; solos de tabuleiro |
topic |
retention capacity; Yellow Red Latosols, "tabuleiro" soils capacidade de retenção; Latossolos Vermelho-Amarelos; solos de tabuleiro |
description |
The fixation of phosphate was studied using samples of forty soils from the state of Rio de Janeiro. The soils were equilibrated with solution of KH2PO4 10-3 M, and the fixed phosphate were determined by the difference between the initial and final concentration of solution. The phosphate fixation varied from 0.05 to 1.89 mmols/100 g of soil. These limits corresponded to 1 to 37,8% of the applied phosphate, respectively, with averages of 23.5% for the Red-Yellow Latosols, 21.5% for the Hydromorphics and Alluvials, 16.3% for the Red-Yellow Podzolics and 4.7% for the soils derived from the sediments of the terciary ("Tabuleiro" soils). The phosphate fixation values, in percentage, were closely correlated with the amounts of clay, moisture, organic matter, oxy-hydroxyds of aluminum and pH in KCI. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-04-16 |
dc.type.none.fl_str_mv |
|
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/15981 |
url |
https://seer.sct.embrapa.br/index.php/pab/article/view/15981 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/15981/10105 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
publisher.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
dc.source.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira; v.17, n.7, jul. 1982; 1023-1029 Pesquisa Agropecuária Brasileira; v.17, n.7, jul. 1982; 1023-1029 1678-3921 0100-104x reponame:Pesquisa Agropecuária Brasileira (Online) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Pesquisa Agropecuária Brasileira (Online) |
collection |
Pesquisa Agropecuária Brasileira (Online) |
repository.name.fl_str_mv |
Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
pab@sct.embrapa.br || sct.pab@embrapa.br |
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1793416714214440960 |