Manganese and exchangeable cations of the Utinga soil Unit
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/17590 |
Resumo: | The studies on macro and microelement and on their availability are rarely developed enough to characterize the Northeastern soils. On surveying the soils of Pernambuco and Alagoas, "Unidade Utinga" drew our attention for its wide distribution and agricultural utilization. These soils, near the coast, belong to the physiographic area called "Litoral Mata". They are used agriculturally, through the production of sugar cane and subsistance crops; livestock production, at first just a monetary complement, now is increasing in importance to characterize these soils through their mineral availability to plants, representative profiles from the Litoral Mata zone of Pernambuco and Alagoas were selected. Exchangeable cations (macro-elements) were extracted by percolation with normal solution of ammonium acetate, pH = 7 e manganese was submitted to several extracters: 1 N ammonium acetate, pH = 7; 0,5 N acetic acid; concentrated flueridric acid and 0,05% alcoolic hydroquinene solution. The cation exchange capacity of these soils is low, and their available manganese is so surprisingly insignificant, that it was not even detected by employed method of analysis, as shown in Tables 1 and 2. Horowitz and Dantas (1966) suggested that low yields of fertilized and irrigated soils in the Litoral Mata zune of Pernambuco must, at least partially, be attributed to the deficiency of manganese and related minor elements (As, Co, Mo, Ni, V and Zn) which are deficient in the sedimentary rocks. |
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Manganese and exchangeable cations of the Utinga soil UnitManganês e cations permutáveis na Unidade UtingaThe studies on macro and microelement and on their availability are rarely developed enough to characterize the Northeastern soils. On surveying the soils of Pernambuco and Alagoas, "Unidade Utinga" drew our attention for its wide distribution and agricultural utilization. These soils, near the coast, belong to the physiographic area called "Litoral Mata". They are used agriculturally, through the production of sugar cane and subsistance crops; livestock production, at first just a monetary complement, now is increasing in importance to characterize these soils through their mineral availability to plants, representative profiles from the Litoral Mata zone of Pernambuco and Alagoas were selected. Exchangeable cations (macro-elements) were extracted by percolation with normal solution of ammonium acetate, pH = 7 e manganese was submitted to several extracters: 1 N ammonium acetate, pH = 7; 0,5 N acetic acid; concentrated flueridric acid and 0,05% alcoolic hydroquinene solution. The cation exchange capacity of these soils is low, and their available manganese is so surprisingly insignificant, that it was not even detected by employed method of analysis, as shown in Tables 1 and 2. Horowitz and Dantas (1966) suggested that low yields of fertilized and irrigated soils in the Litoral Mata zune of Pernambuco must, at least partially, be attributed to the deficiency of manganese and related minor elements (As, Co, Mo, Ni, V and Zn) which are deficient in the sedimentary rocks.Estudos sobre a disponibilidade de macro e micronutrientes, nos solos do Nordeste, ainda são raros e insuficientes, para caracterizá-los. Os solos da unidade Utinga, próximos ao litoral, fazem parte da zona fisiográfica Litoral Mata e, sob o ponto de vista agrícola, são os mais explorados por cana-de-açúcar e cultura de subsistência, (mandioca, milho, feijão); ai a pecuária, de simples complementação monetária que era, já começa a se desenvolver. Foram escolhidos perfis representativos dos solos da unidade Utinga dos Estados de Pernambuco e Alagoas com o objetivo de estudar a caracterização desses solos, mediante a disponibilidade de elementos às plantas. Os cations permutáveis (macroelementos) foram extraídos por percolação, usando-se solução normal de CH3COONH4 a pH = 7,0, enquanto o manganês, determinado espectrofotométricamente, teve várias extrações: CH3COONH4 1N a pH = 7,0; CH3COOH 0,5N, HF e com solução alcoólica de hidroquinona a 0,05%. É baixo o conteúdo ele base trocáveis desses solos, e o Mn disponível é surpreendentemente baixo para as plantas, sendo mesmo indetectável pelo método usado, conforme dados apesentados. Horowitz e Dantas (1966) levantaram a hipótese de que é bem possível que o baixo rendimento agrícola dos solos da zona Litoral Mata de Pernambuco, mesmo quando adubados (macroelementos) e irrigados, se deva, pelo menos em parte, à deficiência do Mn e provavelmente também de outros elementos menores associados ao manganês nas rochas sedimentares (As-Co-Mo-Ni-V e Zn).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/17590Pesquisa Agropecuaria Brasileira; v.6, n.1, 1971: Série Agronomia e Veterinária; 27-30Pesquisa Agropecuária Brasileira; v.6, n.1, 1971: Série Agronomia e Veterinária; 27-301678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/17590/11811info:eu-repo/semantics/openAccess2014-04-15T18:35:58Zoai:ojs.seer.sct.embrapa.br:article/17590Revistahttp://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 |
Manganese and exchangeable cations of the Utinga soil Unit Manganês e cations permutáveis na Unidade Utinga |
title |
Manganese and exchangeable cations of the Utinga soil Unit |
spellingShingle |
Manganese and exchangeable cations of the Utinga soil Unit Dantas, Humberto da Silveira |
title_short |
Manganese and exchangeable cations of the Utinga soil Unit |
title_full |
Manganese and exchangeable cations of the Utinga soil Unit |
title_fullStr |
Manganese and exchangeable cations of the Utinga soil Unit |
title_full_unstemmed |
Manganese and exchangeable cations of the Utinga soil Unit |
title_sort |
Manganese and exchangeable cations of the Utinga soil Unit |
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 |
The studies on macro and microelement and on their availability are rarely developed enough to characterize the Northeastern soils. On surveying the soils of Pernambuco and Alagoas, "Unidade Utinga" drew our attention for its wide distribution and agricultural utilization. These soils, near the coast, belong to the physiographic area called "Litoral Mata". They are used agriculturally, through the production of sugar cane and subsistance crops; livestock production, at first just a monetary complement, now is increasing in importance to characterize these soils through their mineral availability to plants, representative profiles from the Litoral Mata zone of Pernambuco and Alagoas were selected. Exchangeable cations (macro-elements) were extracted by percolation with normal solution of ammonium acetate, pH = 7 e manganese was submitted to several extracters: 1 N ammonium acetate, pH = 7; 0,5 N acetic acid; concentrated flueridric acid and 0,05% alcoolic hydroquinene solution. The cation exchange capacity of these soils is low, and their available manganese is so surprisingly insignificant, that it was not even detected by employed method of analysis, as shown in Tables 1 and 2. Horowitz and Dantas (1966) suggested that low yields of fertilized and irrigated soils in the Litoral Mata zune of Pernambuco must, at least partially, be attributed to the deficiency of manganese and related minor elements (As, Co, Mo, Ni, V and Zn) which are deficient in the sedimentary rocks. |
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/17590 |
url |
https://seer.sct.embrapa.br/index.php/pab/article/view/17590 |
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/17590/11811 |
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; 27-30 Pesquisa Agropecuária Brasileira; v.6, n.1, 1971: Série Agronomia e Veterinária; 27-30 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) |
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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) |
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pab@sct.embrapa.br || sct.pab@embrapa.br |
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