AGRONOMIC EFFICIENCY OF NATURAL PHOSPHATES AND THEIR INFLUENCE ON SOIL AVAILABLE PHOSPHORUS ON TWO CERRADO SOILS

Detalhes bibliográficos
Autor(a) principal: Kliemann, Huberto José
Data de Publicação: 2007
Outros Autores: Lima, David Vieira
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Agropecuária Tropical (Online)
Texto Completo: https://revistas.ufg.br/pat/article/view/2472
Resumo: To evaluate the agronomic efficiency of natural phosphates soybean was grown in two oxisols under cerrado vegetation, using apatites (Araxá, Patos de Minas, Tapira, Abaeté, and Catalão), phosphoric bauxites (Pirocaua and Phospal), Gafsa hyperphosphate, nd IPT thermophosphate, using triple superphosphate as a control. he agronomic efficiency indexes found were: a) apatites - Araxá nd Abaeté, 27%; Patos de Minas, 13%; Tapira, 5%, and Catalão, %; b) phosphoric bauxites - Pirocaua, 41% and Phospal, 50%; c) hermophosphate IPT, 97% and hyperphosphate of Gafsa, 102%. he acid extractor Mehclich-1 overestimates available P when nsoluble apatites are applied to soils. Bray-1 and Bray-2 extractors referably solubilize the aluminum phosphates from phosphoric auxites. Critical levels of soil available phosphorus are suitably stimated by Bray-1 extractant when apatitic phosphates and by ehlich-1 extractant phosphoric bauxites are applied. KEY-WORDS: Oxisols; soybeans; phosphates sources; chemical extractors; soybean.
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spelling AGRONOMIC EFFICIENCY OF NATURAL PHOSPHATES AND THEIR INFLUENCE ON SOIL AVAILABLE PHOSPHORUS ON TWO CERRADO SOILSEFICIÊNCIA AGRONÔMICA DE FOSFATOS NATURAIS E SUA INFLUÊNCIA NO FÓSFORO DISPONÍVEL EM DOIS SOLOS DE CERRADOOxisolssoybeansphosphates sourceschemical extractorssoybeanLatossoloscerradossojafontes de fósforoextratores químicos To evaluate the agronomic efficiency of natural phosphates soybean was grown in two oxisols under cerrado vegetation, using apatites (Araxá, Patos de Minas, Tapira, Abaeté, and Catalão), phosphoric bauxites (Pirocaua and Phospal), Gafsa hyperphosphate, nd IPT thermophosphate, using triple superphosphate as a control. he agronomic efficiency indexes found were: a) apatites - Araxá nd Abaeté, 27%; Patos de Minas, 13%; Tapira, 5%, and Catalão, %; b) phosphoric bauxites - Pirocaua, 41% and Phospal, 50%; c) hermophosphate IPT, 97% and hyperphosphate of Gafsa, 102%. he acid extractor Mehclich-1 overestimates available P when nsoluble apatites are applied to soils. Bray-1 and Bray-2 extractors referably solubilize the aluminum phosphates from phosphoric auxites. Critical levels of soil available phosphorus are suitably stimated by Bray-1 extractant when apatitic phosphates and by ehlich-1 extractant phosphoric bauxites are applied. KEY-WORDS: Oxisols; soybeans; phosphates sources; chemical extractors; soybean. Conduziram-se experimentos de avaliação de fosfatos naturais em latossolo vermelho-escuro distrófico (textura média) e latossolo roxo distrófico (textura argilosa), fase cerrado, no Estado de Goiás. Usaram-se a soja como planta-teste, curvas de resposta com superfosfato triplo (SFT) como padrão e como fontes de fósforo as apatitas de Araxá, Patos de Minas, Tapira, Abaeté e Catalão, as bauxitas fosfóricas de Pirocaua (Maranhão) e Phospal (Senegal), o hiperfosfato de Gafsa e o termofosfato IPT. Obtiveram-se os seguintes índices de eficiência agronômica (IEA): a) apatitas – Abaeté e Araxá: 27%; Patos de Minas: 13%; Tapira: 5%; e Catalão: 2%; b) termofosfato IPT: 97% e o hiperfosfato reativo de Gafsa, 102%; c) bauxitas de Pirocaua, 41% e Phospal: 50%. Os extratores Mehlich-1, Bray-1 e Bray-2 aferem adequadamente os níveis de P disponível nos dois solos estudados aplicados na forma de SFT. O extrator Mehlich-1 solubiliza os fosfatos naturais apatíticos aplicados ao solo, superestimando o P disponível; os extratores Bray-1 e Bray-2 solubilizam preferencialmente as bauxitas fosfóricas. Os níveis críticos de P disponível nos solos são adequadamente estimados pelo método Bray-1 com a aplicação de fosfatos apatíticos e pelo método Mehlich-1 com a aplicação das bauxitas fosfóricas. PALAVRAS-CHAVE: Latossolos; cerrados; soja; fontes de fósforo; extratores químicos; soja.Escola de Agronomia - Universidade Federal de Goiás2007-11-26info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionAvaliado por paresPesquisa experimentalapplication/savehttps://revistas.ufg.br/pat/article/view/2472Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; v. 31, n. 2, Jul./Dec. 2001; 111-119Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 31, n. 2, jul./dez. 2001; 111-119Pesquisa Agropecuária Tropical; v. 31, n. 2, jul./dez. 2001; 111-1191983-4063reponame:Pesquisa Agropecuária Tropical (Online)instname:Universidade Federal de Goiás (UFG)instacron:UFGporhttps://revistas.ufg.br/pat/article/view/2472/2440Kliemann, Huberto JoséLima, David Vieirainfo:eu-repo/semantics/openAccess2020-02-26T23:56:13Zoai:ojs.revistas.ufg.br:article/2472Revistahttps://revistas.ufg.br/patPUBhttps://revistas.ufg.br/pat/oaiaseleguini.pat@gmail.com||mgoes@agro.ufg.br1983-40631517-6398opendoar:2024-05-21T19:55:10.834334Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)true
dc.title.none.fl_str_mv AGRONOMIC EFFICIENCY OF NATURAL PHOSPHATES AND THEIR INFLUENCE ON SOIL AVAILABLE PHOSPHORUS ON TWO CERRADO SOILS
EFICIÊNCIA AGRONÔMICA DE FOSFATOS NATURAIS E SUA INFLUÊNCIA NO FÓSFORO DISPONÍVEL EM DOIS SOLOS DE CERRADO
title AGRONOMIC EFFICIENCY OF NATURAL PHOSPHATES AND THEIR INFLUENCE ON SOIL AVAILABLE PHOSPHORUS ON TWO CERRADO SOILS
spellingShingle AGRONOMIC EFFICIENCY OF NATURAL PHOSPHATES AND THEIR INFLUENCE ON SOIL AVAILABLE PHOSPHORUS ON TWO CERRADO SOILS
Kliemann, Huberto José
Oxisols
soybeans
phosphates sources
chemical extractors
soybean
Latossolos
cerrados
soja
fontes de fósforo
extratores químicos
title_short AGRONOMIC EFFICIENCY OF NATURAL PHOSPHATES AND THEIR INFLUENCE ON SOIL AVAILABLE PHOSPHORUS ON TWO CERRADO SOILS
title_full AGRONOMIC EFFICIENCY OF NATURAL PHOSPHATES AND THEIR INFLUENCE ON SOIL AVAILABLE PHOSPHORUS ON TWO CERRADO SOILS
title_fullStr AGRONOMIC EFFICIENCY OF NATURAL PHOSPHATES AND THEIR INFLUENCE ON SOIL AVAILABLE PHOSPHORUS ON TWO CERRADO SOILS
title_full_unstemmed AGRONOMIC EFFICIENCY OF NATURAL PHOSPHATES AND THEIR INFLUENCE ON SOIL AVAILABLE PHOSPHORUS ON TWO CERRADO SOILS
title_sort AGRONOMIC EFFICIENCY OF NATURAL PHOSPHATES AND THEIR INFLUENCE ON SOIL AVAILABLE PHOSPHORUS ON TWO CERRADO SOILS
author Kliemann, Huberto José
author_facet Kliemann, Huberto José
Lima, David Vieira
author_role author
author2 Lima, David Vieira
author2_role author
dc.contributor.author.fl_str_mv Kliemann, Huberto José
Lima, David Vieira
dc.subject.por.fl_str_mv Oxisols
soybeans
phosphates sources
chemical extractors
soybean
Latossolos
cerrados
soja
fontes de fósforo
extratores químicos
topic Oxisols
soybeans
phosphates sources
chemical extractors
soybean
Latossolos
cerrados
soja
fontes de fósforo
extratores químicos
description To evaluate the agronomic efficiency of natural phosphates soybean was grown in two oxisols under cerrado vegetation, using apatites (Araxá, Patos de Minas, Tapira, Abaeté, and Catalão), phosphoric bauxites (Pirocaua and Phospal), Gafsa hyperphosphate, nd IPT thermophosphate, using triple superphosphate as a control. he agronomic efficiency indexes found were: a) apatites - Araxá nd Abaeté, 27%; Patos de Minas, 13%; Tapira, 5%, and Catalão, %; b) phosphoric bauxites - Pirocaua, 41% and Phospal, 50%; c) hermophosphate IPT, 97% and hyperphosphate of Gafsa, 102%. he acid extractor Mehclich-1 overestimates available P when nsoluble apatites are applied to soils. Bray-1 and Bray-2 extractors referably solubilize the aluminum phosphates from phosphoric auxites. Critical levels of soil available phosphorus are suitably stimated by Bray-1 extractant when apatitic phosphates and by ehlich-1 extractant phosphoric bauxites are applied. KEY-WORDS: Oxisols; soybeans; phosphates sources; chemical extractors; soybean.
publishDate 2007
dc.date.none.fl_str_mv 2007-11-26
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Avaliado por pares
Pesquisa experimental
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://revistas.ufg.br/pat/article/view/2472
url https://revistas.ufg.br/pat/article/view/2472
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://revistas.ufg.br/pat/article/view/2472/2440
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/save
dc.publisher.none.fl_str_mv Escola de Agronomia - Universidade Federal de Goiás
publisher.none.fl_str_mv Escola de Agronomia - Universidade Federal de Goiás
dc.source.none.fl_str_mv Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; v. 31, n. 2, Jul./Dec. 2001; 111-119
Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 31, n. 2, jul./dez. 2001; 111-119
Pesquisa Agropecuária Tropical; v. 31, n. 2, jul./dez. 2001; 111-119
1983-4063
reponame:Pesquisa Agropecuária Tropical (Online)
instname:Universidade Federal de Goiás (UFG)
instacron:UFG
instname_str Universidade Federal de Goiás (UFG)
instacron_str UFG
institution UFG
reponame_str Pesquisa Agropecuária Tropical (Online)
collection Pesquisa Agropecuária Tropical (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)
repository.mail.fl_str_mv aseleguini.pat@gmail.com||mgoes@agro.ufg.br
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