Hot-water soluble boron in the “Zona Litoral-Mata” soils of the State of Pernambuco
Autor(a) principal: | |
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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/17504 |
Resumo: | The hot-water soluble boron content of eleven typical soils regarded as the most representative of the area known as the “Zona Litoral—Mata” of the State of Pernambuco Brazil (coast area), was determined by two different extraction methods. Both methods gave results in reasonable agreement. The data obtained showed that the most important agricultural soils of the State, have a soluble boron content ranging between 4.34 and 0.58 ppm in the surface horizon. They can be regarded as having a normal content of available boron. If the critical level of 0.50 ppm of hot-water soluble boron is accepted as the limit for a soil to be regarded as deficient, only one, among the studied soils (corresponding to most of the soils of Barreiros country), is near the boundary of deficiency. All the other soils apparently contain an adequate amount of soluble boron. Although the limits of available boron content between deficiency and excess are narrow, the evidences strongly suggests that toxicity symptoms are unlikely to occur. The hot-water soluble boron was well correlated the soil organic matter, exhibiting a clear tendency to concentrate in the surface horizons. There was also a less pronounced tendency for the soluble boron to concentrate in the horizons richest in clay minerals. |
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Hot-water soluble boron in the “Zona Litoral-Mata” soils of the State of PernambucoBoro disponível nos solos da zona litoral-mata de PernambucoThe hot-water soluble boron content of eleven typical soils regarded as the most representative of the area known as the “Zona Litoral—Mata” of the State of Pernambuco Brazil (coast area), was determined by two different extraction methods. Both methods gave results in reasonable agreement. The data obtained showed that the most important agricultural soils of the State, have a soluble boron content ranging between 4.34 and 0.58 ppm in the surface horizon. They can be regarded as having a normal content of available boron. If the critical level of 0.50 ppm of hot-water soluble boron is accepted as the limit for a soil to be regarded as deficient, only one, among the studied soils (corresponding to most of the soils of Barreiros country), is near the boundary of deficiency. All the other soils apparently contain an adequate amount of soluble boron. Although the limits of available boron content between deficiency and excess are narrow, the evidences strongly suggests that toxicity symptoms are unlikely to occur. The hot-water soluble boron was well correlated the soil organic matter, exhibiting a clear tendency to concentrate in the surface horizons. There was also a less pronounced tendency for the soluble boron to concentrate in the horizons richest in clay minerals.O teor de boro solúvel em água fervendo foi determinado em 11 perfis de solos considerados como representativos da maior parte dos solos da zona Litoral - Mata de Pernambuco, utilizando-se dois métodos diferentes de extração. Constatou-se que ambos os métodos dão resultados razoavelmente aproximados. Esses resultados mostraram que os solos estudados, que compreendem a maioria dos solos agrícolas mais importantes do Estado, são bastante normais no que se refere ao teor de boro solúvel, que varia entre 4,34 e 0,58 ppm na camada superficial. Se se aceita o teor de 0,50 ppm de hora solúvel em água fervendo como limite para um solo ser considerado deficiente, apenas um, dentre os tipos de solo analisados, correspondente à maior parte do município de Barreiros, se situa beirando esse limite. Todos os restantes aparentam conter um teor adequado de boro. Embora os limites entre os níveis adequados de boro, e os tóxicos, sejam relativamente próximos, existem fortes razões para se supor que sintomas de toxidez em plantas cultivadas nesses solos, são improváveis. O boro solúvel se correlaciona muito bem com o conteúdo de matéria orgânica do solo, mostrando uma clara tendência a se concentrar no horizonte superficial. Existe também uma tendência, bastante menos pronunciada, de concentração nos horizontes mais argilosos. Resulta claro que o boro assimilável nos solos estudados se encontra, na maior parte, adsorvido na matéria orgânica. Uma porção menor se acha, provavelmente, adsorvida nos minerais da argila.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraHorowitz, ArãoDantas, Humberto da Silveira2014-04-15info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/17504Pesquisa Agropecuaria Brasileira; v.8, n.7, 1973: Série Agronomia; 163-168Pesquisa Agropecuária Brasileira; v.8, n.7, 1973: Série Agronomia; 163-1681678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/17504/11738info:eu-repo/semantics/openAccess2014-04-15T18:48:37Zoai:ojs.seer.sct.embrapa.br:article/17504Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-04-15T18:48:37Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Hot-water soluble boron in the “Zona Litoral-Mata” soils of the State of Pernambuco Boro disponível nos solos da zona litoral-mata de Pernambuco |
title |
Hot-water soluble boron in the “Zona Litoral-Mata” soils of the State of Pernambuco |
spellingShingle |
Hot-water soluble boron in the “Zona Litoral-Mata” soils of the State of Pernambuco Horowitz, Arão |
title_short |
Hot-water soluble boron in the “Zona Litoral-Mata” soils of the State of Pernambuco |
title_full |
Hot-water soluble boron in the “Zona Litoral-Mata” soils of the State of Pernambuco |
title_fullStr |
Hot-water soluble boron in the “Zona Litoral-Mata” soils of the State of Pernambuco |
title_full_unstemmed |
Hot-water soluble boron in the “Zona Litoral-Mata” soils of the State of Pernambuco |
title_sort |
Hot-water soluble boron in the “Zona Litoral-Mata” soils of the State of Pernambuco |
author |
Horowitz, Arão |
author_facet |
Horowitz, Arão Dantas, Humberto da Silveira |
author_role |
author |
author2 |
Dantas, Humberto da Silveira |
author2_role |
author |
dc.contributor.none.fl_str_mv |
|
dc.contributor.author.fl_str_mv |
Horowitz, Arão Dantas, Humberto da Silveira |
dc.subject.none.fl_str_mv |
|
description |
The hot-water soluble boron content of eleven typical soils regarded as the most representative of the area known as the “Zona Litoral—Mata” of the State of Pernambuco Brazil (coast area), was determined by two different extraction methods. Both methods gave results in reasonable agreement. The data obtained showed that the most important agricultural soils of the State, have a soluble boron content ranging between 4.34 and 0.58 ppm in the surface horizon. They can be regarded as having a normal content of available boron. If the critical level of 0.50 ppm of hot-water soluble boron is accepted as the limit for a soil to be regarded as deficient, only one, among the studied soils (corresponding to most of the soils of Barreiros country), is near the boundary of deficiency. All the other soils apparently contain an adequate amount of soluble boron. Although the limits of available boron content between deficiency and excess are narrow, the evidences strongly suggests that toxicity symptoms are unlikely to occur. The hot-water soluble boron was well correlated the soil organic matter, exhibiting a clear tendency to concentrate in the surface horizons. There was also a less pronounced tendency for the soluble boron to concentrate in the horizons richest in clay minerals. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-04-15 |
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/17504 |
url |
https://seer.sct.embrapa.br/index.php/pab/article/view/17504 |
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/17504/11738 |
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.8, n.7, 1973: Série Agronomia; 163-168 Pesquisa Agropecuária Brasileira; v.8, n.7, 1973: Série Agronomia; 163-168 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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