Cobalt and sorbed complex of the soils of the soil Unit Utinga
Autor(a) principal: | |
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Data de Publicação: | 2014 |
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/17589 |
Resumo: | Considering the development of livestock production in the Litoral Mata area of Pernambuco and Alagoas, and the significance of mineral elements in animal nutrition, the author has studied some soils to detect cobalt as well as macroelements deficiencies. Representative "Unidade Utinga" soils from coastal Pernambuco and Alagoas were collected and analysed through spectrophotometry, flamephotometry and other methods. According to the classification referred to by Reddy and Mahte, 1961, these soils proved to be deficient in total cobalt (less than 2.5 ppm, flueridric extract), as well as in soluble cobalt (less than 0.1 ppm, CH2COONH4 1 N and CH3COOH 0,5 N extract). Of the interchangeable cations, K+, Na+, Ca2+ and Mg2+ no one was emphasized, although Ca was predominant over the others. Since manganese is non toxic (Dantas 1971) attention should be called to Al2+, although the causes of toxicity of acid soils are not very well established yet. According to Carr and Torekin (1961), Co has a tendency to be associated to mangnesium more than with iron (II) and so the largest part of cobalt in the granitic rocks is concentrated in the ferromagnesian minerals. The analytic e values are in Tables 1 and 2. |
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Cobalt and sorbed complex of the soils of the soil Unit UtingaCobalto e complexo sortivo nos solos da Unidade UtingaConsidering the development of livestock production in the Litoral Mata area of Pernambuco and Alagoas, and the significance of mineral elements in animal nutrition, the author has studied some soils to detect cobalt as well as macroelements deficiencies. Representative "Unidade Utinga" soils from coastal Pernambuco and Alagoas were collected and analysed through spectrophotometry, flamephotometry and other methods. According to the classification referred to by Reddy and Mahte, 1961, these soils proved to be deficient in total cobalt (less than 2.5 ppm, flueridric extract), as well as in soluble cobalt (less than 0.1 ppm, CH2COONH4 1 N and CH3COOH 0,5 N extract). Of the interchangeable cations, K+, Na+, Ca2+ and Mg2+ no one was emphasized, although Ca was predominant over the others. Since manganese is non toxic (Dantas 1971) attention should be called to Al2+, although the causes of toxicity of acid soils are not very well established yet. According to Carr and Torekin (1961), Co has a tendency to be associated to mangnesium more than with iron (II) and so the largest part of cobalt in the granitic rocks is concentrated in the ferromagnesian minerals. The analytic e values are in Tables 1 and 2.Solos representativos da unidade Utinga, situadas nas proximidades do litoral de Pernambuco e Alagoas, foram coletados e analisados por espectrofotometria, fotometria de chama e por outros processos analíticos. Admitindo-se a classificação de Walsh et al. (1956) os solos da unidade Utinga são deficientes em cobalto total (menor que 2,5 ppm, extrato fluorídrico), sendo ainda deficientes em Co solúvel (menor que 0,1 ppm, extrato CH3COONH4 1N e CH3COOH 0,5N). Dos cations permutáveis K+, Na+ Ca2+ e Mg2+, nenhum obteve destaque, embora houvesse predomínio do cálcio sobre os demais (Dantas 1967). Como não há toxidez de manganês (Dantas 1971), as atenções devem ser dirigidas para o Al3+, muito embora a causa da toxidez em solos ácidos ainda não seja bem definida (Foy & Brown 1963). Segundo Carr e Turekin (1961), o Co tende a seguir mais o magnésio do que o ferro (II), e em razão dessa coerência com Mg2+ e Fe2+ é que a maior parte do cobalto nas rochas graníticas está concentrado nos minerais ferromagnesianos. Os valores analíticos estão nos Quadros 1 e 2.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraDantas, Humberto da Silveira2014-04-15info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/17589Pesquisa Agropecuaria Brasileira; v.6, n.1, 1971: Série Agronomia e Veterinária; 23-26Pesquisa Agropecuária Brasileira; v.6, n.1, 1971: Série Agronomia e Veterinária; 23-261678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/17589/11810info:eu-repo/semantics/openAccess2014-04-15T18:35:58Zoai:ojs.seer.sct.embrapa.br:article/17589Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-04-15T18:35:58Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Cobalt and sorbed complex of the soils of the soil Unit Utinga Cobalto e complexo sortivo nos solos da Unidade Utinga |
title |
Cobalt and sorbed complex of the soils of the soil Unit Utinga |
spellingShingle |
Cobalt and sorbed complex of the soils of the soil Unit Utinga Dantas, Humberto da Silveira |
title_short |
Cobalt and sorbed complex of the soils of the soil Unit Utinga |
title_full |
Cobalt and sorbed complex of the soils of the soil Unit Utinga |
title_fullStr |
Cobalt and sorbed complex of the soils of the soil Unit Utinga |
title_full_unstemmed |
Cobalt and sorbed complex of the soils of the soil Unit Utinga |
title_sort |
Cobalt and sorbed complex of the soils of the soil Unit Utinga |
author |
Dantas, Humberto da Silveira |
author_facet |
Dantas, Humberto da Silveira |
author_role |
author |
dc.contributor.none.fl_str_mv |
|
dc.contributor.author.fl_str_mv |
Dantas, Humberto da Silveira |
dc.subject.none.fl_str_mv |
|
description |
Considering the development of livestock production in the Litoral Mata area of Pernambuco and Alagoas, and the significance of mineral elements in animal nutrition, the author has studied some soils to detect cobalt as well as macroelements deficiencies. Representative "Unidade Utinga" soils from coastal Pernambuco and Alagoas were collected and analysed through spectrophotometry, flamephotometry and other methods. According to the classification referred to by Reddy and Mahte, 1961, these soils proved to be deficient in total cobalt (less than 2.5 ppm, flueridric extract), as well as in soluble cobalt (less than 0.1 ppm, CH2COONH4 1 N and CH3COOH 0,5 N extract). Of the interchangeable cations, K+, Na+, Ca2+ and Mg2+ no one was emphasized, although Ca was predominant over the others. Since manganese is non toxic (Dantas 1971) attention should be called to Al2+, although the causes of toxicity of acid soils are not very well established yet. According to Carr and Torekin (1961), Co has a tendency to be associated to mangnesium more than with iron (II) and so the largest part of cobalt in the granitic rocks is concentrated in the ferromagnesian minerals. The analytic e values are in Tables 1 and 2. |
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/17589 |
url |
https://seer.sct.embrapa.br/index.php/pab/article/view/17589 |
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/17589/11810 |
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.6, n.1, 1971: Série Agronomia e Veterinária; 23-26 Pesquisa Agropecuária Brasileira; v.6, n.1, 1971: Série Agronomia e Veterinária; 23-26 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) |
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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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