Retention and leaching of copper and zinc in "Tabuleiro" soils as influenced by nutrient carrier
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Pesquisa Agropecuária Brasileira (Online) |
Texto Completo: | https://seer.sct.embrapa.br/index.php/pab/article/view/16774 |
Resumo: | The "tabuleiro" soils, due to their topography and physical properties, would be advantageous for agricultural development. However, they are sandy, highly leached and extremely infertile. Deficiencies reported include thoso of copper and zinc. Nutrient carriers which are not readily leached, but which will gradually release available forms for uptake by the crop would be most suitable. Determinations of the retention and leaching of copper and zinc, as related to carrier, were made on samples taken from 0-20 and 20-40 cm depths of Red Yellow Podzolic and Hydromorfic Podzol soils from the State of Pernambuco. The 0-20cm layer of the Blodgett soil of Western Montana was included for comparison. Both elements were readily retained by the top soils, and to a greater extent than for subsoils. The Red Yellow Podzolic soil retained more copper and zinc than Hydromorfic Podzol soil at comparable depths. The organic fractions retained much more copper and zinc than mineral fractions of the same soil. The Blodgett soil retained more copper than the corresponding depth of Brazilian soils, however zinc was retained almost equally. The sulphate forms of copper and zinc were leached less readily than resin adsorbed or chelated forms. Up to 100 percent of the copper or zinc added in these latter two forms was leached from the soil. Effects of adding peat to the soil or removing soil organic matter were variable with respect to copper or zinc retention. Results suggest that salt forms of copper and zinc may be very efficient for combatting deficiencies. |
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Retention and leaching of copper and zinc in "Tabuleiro" soils as influenced by nutrient carrierRetenção e lixiviamento de cobre e de zinco, influenciados pela fonte nutriente, em dois solos de “ tabuleiro”leaching of micronutrient; micronutrient cations in "tabuleiro" soillixiviação de nutrientes; micronutrientes nos solos de tabuleirosThe "tabuleiro" soils, due to their topography and physical properties, would be advantageous for agricultural development. However, they are sandy, highly leached and extremely infertile. Deficiencies reported include thoso of copper and zinc. Nutrient carriers which are not readily leached, but which will gradually release available forms for uptake by the crop would be most suitable. Determinations of the retention and leaching of copper and zinc, as related to carrier, were made on samples taken from 0-20 and 20-40 cm depths of Red Yellow Podzolic and Hydromorfic Podzol soils from the State of Pernambuco. The 0-20cm layer of the Blodgett soil of Western Montana was included for comparison. Both elements were readily retained by the top soils, and to a greater extent than for subsoils. The Red Yellow Podzolic soil retained more copper and zinc than Hydromorfic Podzol soil at comparable depths. The organic fractions retained much more copper and zinc than mineral fractions of the same soil. The Blodgett soil retained more copper than the corresponding depth of Brazilian soils, however zinc was retained almost equally. The sulphate forms of copper and zinc were leached less readily than resin adsorbed or chelated forms. Up to 100 percent of the copper or zinc added in these latter two forms was leached from the soil. Effects of adding peat to the soil or removing soil organic matter were variable with respect to copper or zinc retention. Results suggest that salt forms of copper and zinc may be very efficient for combatting deficiencies.Foram estudados 2 solos de "tabuleiro" de Pernambuco: um Podzólico Vermelho-Amarelo e outro Podzol Hidromórfico muito arenoso, ambos altamente lixiviados e extremamente inférteis; a capacidade de retenção e o grau de lixiviamento do cobre e do zinco, nas profundidades de 0-20 e 20-40 cm, usando-se como fontes de suprimento desses microelementos CuSO4 5H2O, ZnSO4, 7H2O, resina saturada em Cu e Zn e Cu (Zn) - EDTA, com ou sem adição de 5% de turfa. Foi incluído no experimento, para fins de comparação, um solo de baixa fertilidade coletado a 0-20 cm em Western Montana, U.S.A. Os tratamentos incluíram amostras dos solos integrais e das respectivas frações minerais (removida a M.O.), a adição dos nutrientes em doses de 10 e 20 ppm, o lixiviamento intensivo durante 6 semanas e a coleta semanal de extratos de solos, que foram analisados por absorção atômica para determinação do teor de cobre e de zinco. Os resultados obtidos mostraram que nos dois solos brasileiros a retenção de cobre e de zinco esteve diretamente relacionada com o teor de M.O. na amostra; assim, a retenção foi maior na camada superficial, mais rica em M.O. do que a de 20-40 cm, e 30 vezes maior na fração de M.O. do que no solo integral de 0-20 cm de profundidade; esses dois solos retiveram mais zinco do que cobre, e no solo vermelho-amarelo Podzólico a retenção dos dois elementos foi maior do que no solo Podzol Hydromórfico. O solo de Montana reteve mais cobre do que zinco e apresentou maior retenção de cobre do que os solos brasileiros, mas a retenção de zinco foi equivalente. Os sulfatos apresentaram menor lixiviamento do que as outras formas de adição desses nutrientes, indicando que a forma de sal é a mais eficiente para combater a deficiência desses elementos nos solos estudados.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraLeite, José PereiraSkogley, Earl O.2014-04-15info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/16774Pesquisa Agropecuaria Brasileira; v.12, n. único, 1977; 27-34Pesquisa Agropecuária Brasileira; v.12, n. único, 1977; 27-341678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAenghttps://seer.sct.embrapa.br/index.php/pab/article/view/16774/11098info:eu-repo/semantics/openAccess2014-04-15T19:09:32Zoai:ojs.seer.sct.embrapa.br:article/16774Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-04-15T19:09:32Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Retention and leaching of copper and zinc in "Tabuleiro" soils as influenced by nutrient carrier Retenção e lixiviamento de cobre e de zinco, influenciados pela fonte nutriente, em dois solos de “ tabuleiro” |
title |
Retention and leaching of copper and zinc in "Tabuleiro" soils as influenced by nutrient carrier |
spellingShingle |
Retention and leaching of copper and zinc in "Tabuleiro" soils as influenced by nutrient carrier Leite, José Pereira leaching of micronutrient; micronutrient cations in "tabuleiro" soil lixiviação de nutrientes; micronutrientes nos solos de tabuleiros |
title_short |
Retention and leaching of copper and zinc in "Tabuleiro" soils as influenced by nutrient carrier |
title_full |
Retention and leaching of copper and zinc in "Tabuleiro" soils as influenced by nutrient carrier |
title_fullStr |
Retention and leaching of copper and zinc in "Tabuleiro" soils as influenced by nutrient carrier |
title_full_unstemmed |
Retention and leaching of copper and zinc in "Tabuleiro" soils as influenced by nutrient carrier |
title_sort |
Retention and leaching of copper and zinc in "Tabuleiro" soils as influenced by nutrient carrier |
author |
Leite, José Pereira |
author_facet |
Leite, José Pereira Skogley, Earl O. |
author_role |
author |
author2 |
Skogley, Earl O. |
author2_role |
author |
dc.contributor.none.fl_str_mv |
|
dc.contributor.author.fl_str_mv |
Leite, José Pereira Skogley, Earl O. |
dc.subject.por.fl_str_mv |
leaching of micronutrient; micronutrient cations in "tabuleiro" soil lixiviação de nutrientes; micronutrientes nos solos de tabuleiros |
topic |
leaching of micronutrient; micronutrient cations in "tabuleiro" soil lixiviação de nutrientes; micronutrientes nos solos de tabuleiros |
description |
The "tabuleiro" soils, due to their topography and physical properties, would be advantageous for agricultural development. However, they are sandy, highly leached and extremely infertile. Deficiencies reported include thoso of copper and zinc. Nutrient carriers which are not readily leached, but which will gradually release available forms for uptake by the crop would be most suitable. Determinations of the retention and leaching of copper and zinc, as related to carrier, were made on samples taken from 0-20 and 20-40 cm depths of Red Yellow Podzolic and Hydromorfic Podzol soils from the State of Pernambuco. The 0-20cm layer of the Blodgett soil of Western Montana was included for comparison. Both elements were readily retained by the top soils, and to a greater extent than for subsoils. The Red Yellow Podzolic soil retained more copper and zinc than Hydromorfic Podzol soil at comparable depths. The organic fractions retained much more copper and zinc than mineral fractions of the same soil. The Blodgett soil retained more copper than the corresponding depth of Brazilian soils, however zinc was retained almost equally. The sulphate forms of copper and zinc were leached less readily than resin adsorbed or chelated forms. Up to 100 percent of the copper or zinc added in these latter two forms was leached from the soil. Effects of adding peat to the soil or removing soil organic matter were variable with respect to copper or zinc retention. Results suggest that salt forms of copper and zinc may be very efficient for combatting deficiencies. |
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/16774 |
url |
https://seer.sct.embrapa.br/index.php/pab/article/view/16774 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/16774/11098 |
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.12, n. único, 1977; 27-34 Pesquisa Agropecuária Brasileira; v.12, n. único, 1977; 27-34 1678-3921 0100-104x reponame:Pesquisa Agropecuária Brasileira (Online) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
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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) |
repository.mail.fl_str_mv |
pab@sct.embrapa.br || sct.pab@embrapa.br |
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