Distribution of inorganic phosphorus fraction in soil management systems
Autor(a) principal: | |
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Data de Publicação: | 2001 |
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/6098 |
Resumo: | The intensity of the reactions of the phosphate fertilizer in the soil should vary in function of the different management systems. The study had the objective of evaluating the modifications in the inorganic fractions of P as affected by soil tillage and crop sequence. In May 1997, three soil layers of four long-term field experiments, involving no-tillage and conventional tillage with different crop sequences, were sampled. The total P and six fractions of inorganic P were evaluated. The medium content of total P was much higher than the native P. Total P increased in the upper soil layer under no-tillage. Available (resin and NaHCO3 0.5 mol L-1) and nonlabile inorganic P (HCl 1.0 mol L-1) were higher in the surface layer under no-tillage than in conventional tillage. The highest concentrations of inorganic P were moderately labile (NaOH 0.1 mol L-1). The crop sequences did not influence the fractions of inorganic P. |
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Distribution of inorganic phosphorus fraction in soil management systemsDistribuição do fósforo inorgânico em sistemas de manejo de solotillage; phosphate fertilizers; crops; nutrient uptakepreparo do solo; adubação fosfatada; culturas; absorção de nutrientesThe intensity of the reactions of the phosphate fertilizer in the soil should vary in function of the different management systems. The study had the objective of evaluating the modifications in the inorganic fractions of P as affected by soil tillage and crop sequence. In May 1997, three soil layers of four long-term field experiments, involving no-tillage and conventional tillage with different crop sequences, were sampled. The total P and six fractions of inorganic P were evaluated. The medium content of total P was much higher than the native P. Total P increased in the upper soil layer under no-tillage. Available (resin and NaHCO3 0.5 mol L-1) and nonlabile inorganic P (HCl 1.0 mol L-1) were higher in the surface layer under no-tillage than in conventional tillage. The highest concentrations of inorganic P were moderately labile (NaOH 0.1 mol L-1). The crop sequences did not influence the fractions of inorganic P.A intensidade das reações dos fertilizantes fosfatados no solo deve variar em razão dos diferentes sistemas de manejo do solo. Este trabalho teve o objetivo de avaliar as modificações nas frações de P inorgânico provocadas por diferentes preparos do solo e sucessões de cultura. Coletaram-se, em maio de 1997, amostras de solo (Latossolo Vermelho distroférrico típico, Latossolo Vermelho distrófico típico e Argissolo Vermelho distrófico típico), em três camadas (0-2,5, 2,5-7,5 e 7,5-17,5 cm), de quatro experimentos instalados a partir de 1979, envolvendo os sistemas plantio direto e cultivo convencional com diferentes sucessões de cultura. Foram determinados o P total e seis frações de P inorgânico, em ordem decrescente de labilidade. O conteúdo médio de P total foi bem superior ao do seu estado natural, e no sistema plantio direto ocorreu um grande acúmulo na camada superficial. Neste sistema, recuperaram-se maiores teores de P inorgânico lábil (resina e NaHCO3 0,5 mol L-1) e também não-lábil ligado ao Ca (HCl 1,0 mol L-1) na camada superficial. As maiores concentrações de P inorgânico foram extraídas pelo NaOH 0,1 mol L-1, ditas moderadamente lábeis. As sucessões de cultura tiveram pouca influência nas frações de P inorgânico.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraRheinheimer, Danilo dos SantosAnghinoni, Ibanor2001-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/6098Pesquisa Agropecuaria Brasileira; v.36, n.1, jan. 2001; 151-160Pesquisa Agropecuária Brasileira; v.36, n.1, jan. 2001; 151-1601678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/6098/3165info:eu-repo/semantics/openAccess2010-08-13T13:57:59Zoai:ojs.seer.sct.embrapa.br:article/6098Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2010-08-13T13:57:59Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Distribution of inorganic phosphorus fraction in soil management systems Distribuição do fósforo inorgânico em sistemas de manejo de solo |
title |
Distribution of inorganic phosphorus fraction in soil management systems |
spellingShingle |
Distribution of inorganic phosphorus fraction in soil management systems Rheinheimer, Danilo dos Santos tillage; phosphate fertilizers; crops; nutrient uptake preparo do solo; adubação fosfatada; culturas; absorção de nutrientes |
title_short |
Distribution of inorganic phosphorus fraction in soil management systems |
title_full |
Distribution of inorganic phosphorus fraction in soil management systems |
title_fullStr |
Distribution of inorganic phosphorus fraction in soil management systems |
title_full_unstemmed |
Distribution of inorganic phosphorus fraction in soil management systems |
title_sort |
Distribution of inorganic phosphorus fraction in soil management systems |
author |
Rheinheimer, Danilo dos Santos |
author_facet |
Rheinheimer, Danilo dos Santos Anghinoni, Ibanor |
author_role |
author |
author2 |
Anghinoni, Ibanor |
author2_role |
author |
dc.contributor.none.fl_str_mv |
|
dc.contributor.author.fl_str_mv |
Rheinheimer, Danilo dos Santos Anghinoni, Ibanor |
dc.subject.por.fl_str_mv |
tillage; phosphate fertilizers; crops; nutrient uptake preparo do solo; adubação fosfatada; culturas; absorção de nutrientes |
topic |
tillage; phosphate fertilizers; crops; nutrient uptake preparo do solo; adubação fosfatada; culturas; absorção de nutrientes |
description |
The intensity of the reactions of the phosphate fertilizer in the soil should vary in function of the different management systems. The study had the objective of evaluating the modifications in the inorganic fractions of P as affected by soil tillage and crop sequence. In May 1997, three soil layers of four long-term field experiments, involving no-tillage and conventional tillage with different crop sequences, were sampled. The total P and six fractions of inorganic P were evaluated. The medium content of total P was much higher than the native P. Total P increased in the upper soil layer under no-tillage. Available (resin and NaHCO3 0.5 mol L-1) and nonlabile inorganic P (HCl 1.0 mol L-1) were higher in the surface layer under no-tillage than in conventional tillage. The highest concentrations of inorganic P were moderately labile (NaOH 0.1 mol L-1). The crop sequences did not influence the fractions of inorganic P. |
publishDate |
2001 |
dc.date.none.fl_str_mv |
2001-01-01 |
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/6098 |
url |
https://seer.sct.embrapa.br/index.php/pab/article/view/6098 |
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/6098/3165 |
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.36, n.1, jan. 2001; 151-160 Pesquisa Agropecuária Brasileira; v.36, n.1, jan. 2001; 151-160 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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1793416660518961152 |