Sweet sorghum phosphate nutrition diagnosis
Autor(a) principal: | |
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Data de Publicação: | 2014 |
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/14360 |
Resumo: | Two experiments were conducted in Typic Haplorthox in the county of Jaboticabal, SP, Brazil, with the objective of determining the effects of five phosphorus levels (0, 50, 100, 200 and 400 kg/ha of P2O5) on ethanol and stalk yield, and furthermore, of establishing parameters for sweet sorghum phosphate nutritional diagnosis. Positive responses were obtained in stalk and ethanol (l/ha) yields due to phosphate fertilization. The samples studied can be used for the diagnosis of phosphate nutrition in the sorghum crop, given that the phosphorus contents considered to be adequate for leaves +3 or +4 are situated within the following intervals: 0.281% - 0.310% and 0.248% - 0.275%, respectively for leaves recovered during the vegetative growth stage (45 days) and flowering. On the order hand, the maxim stalk yields was associated to a soil phosphorus contents of 19 µg/cm3 (H2SO4 0.05N). Reduction leaves Zn contents were observed with the highest rate of phosphorus (400 kg/ha of P2O5). |
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Sweet sorghum phosphate nutrition diagnosisDiagnose da nutrição fosfatada na cultura do sorgo sacarinoSorghum bicolor; leaf analysis; nutritional state; ethanol; phosphorusSorghum bicolor; análise foliar; estado nutricional; etanol; fósforoTwo experiments were conducted in Typic Haplorthox in the county of Jaboticabal, SP, Brazil, with the objective of determining the effects of five phosphorus levels (0, 50, 100, 200 and 400 kg/ha of P2O5) on ethanol and stalk yield, and furthermore, of establishing parameters for sweet sorghum phosphate nutritional diagnosis. Positive responses were obtained in stalk and ethanol (l/ha) yields due to phosphate fertilization. The samples studied can be used for the diagnosis of phosphate nutrition in the sorghum crop, given that the phosphorus contents considered to be adequate for leaves +3 or +4 are situated within the following intervals: 0.281% - 0.310% and 0.248% - 0.275%, respectively for leaves recovered during the vegetative growth stage (45 days) and flowering. On the order hand, the maxim stalk yields was associated to a soil phosphorus contents of 19 µg/cm3 (H2SO4 0.05N). Reduction leaves Zn contents were observed with the highest rate of phosphorus (400 kg/ha of P2O5).Dois experimentos foram conduzidos em um Latossolo Vermelho-Escuro textura média localizado no município de Jaboticabal, SP, com o objetivo de verificar os efeitos de cinco níveis de fósforo (0, 50, 100, 200 e 400 kg/ha de P2O5) na produção de colmos e etanol, e ainda estabelecer parâmetros para a diagnose da nutrição fosfatada na cultura do sorgo sacarino (Sorghum bicolor (L.) Moench). Foram verificadas respostas positivas na produção de colmos e etanol (l/ha) em virtude da adubação fosfatada. As folhas e épocas estudadas revelaram-se adequadas para a diagnose da nutrição fosfatada, sendo que os teores de fósforo considerados adequados nas folhas de posição +3 e +4 estão situados dentro dos intervalos: 0,281% a 0,310% e 0,248% a 0,275%, respectivamente para folhas coletadas no estádio de crescimento vegetativo (45 dias) e florescimento- Por outro lado, a máxima produção de colmos esteve associada a um teor de fósforo no solo de 19 µg/cm3 (H2SO4 0,05N). Na presença da dose mais elevada de fósforo (400 kg/ha de P2O5) foi observada uma redução significativa nas concentrações de Zn nas folhas.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraCoutinho, Edson Luiz MendesNeptune, André Martin LouisSouza, Euclides Caxambu Alexandrino deGimenes, Juan DomingoNatale, WilliamBanzatto, David Ariovaldo2014-04-17info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/14360Pesquisa Agropecuaria Brasileira; v.22, n.5, maio 1987; 451-457Pesquisa Agropecuária Brasileira; v.22, n.5, maio 1987; 451-4571678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/14360/8263info:eu-repo/semantics/openAccess2014-10-02T19:32:02Zoai:ojs.seer.sct.embrapa.br:article/14360Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-10-02T19:32:02Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Sweet sorghum phosphate nutrition diagnosis Diagnose da nutrição fosfatada na cultura do sorgo sacarino |
title |
Sweet sorghum phosphate nutrition diagnosis |
spellingShingle |
Sweet sorghum phosphate nutrition diagnosis Coutinho, Edson Luiz Mendes Sorghum bicolor; leaf analysis; nutritional state; ethanol; phosphorus Sorghum bicolor; análise foliar; estado nutricional; etanol; fósforo |
title_short |
Sweet sorghum phosphate nutrition diagnosis |
title_full |
Sweet sorghum phosphate nutrition diagnosis |
title_fullStr |
Sweet sorghum phosphate nutrition diagnosis |
title_full_unstemmed |
Sweet sorghum phosphate nutrition diagnosis |
title_sort |
Sweet sorghum phosphate nutrition diagnosis |
author |
Coutinho, Edson Luiz Mendes |
author_facet |
Coutinho, Edson Luiz Mendes Neptune, André Martin Louis Souza, Euclides Caxambu Alexandrino de Gimenes, Juan Domingo Natale, William Banzatto, David Ariovaldo |
author_role |
author |
author2 |
Neptune, André Martin Louis Souza, Euclides Caxambu Alexandrino de Gimenes, Juan Domingo Natale, William Banzatto, David Ariovaldo |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
|
dc.contributor.author.fl_str_mv |
Coutinho, Edson Luiz Mendes Neptune, André Martin Louis Souza, Euclides Caxambu Alexandrino de Gimenes, Juan Domingo Natale, William Banzatto, David Ariovaldo |
dc.subject.por.fl_str_mv |
Sorghum bicolor; leaf analysis; nutritional state; ethanol; phosphorus Sorghum bicolor; análise foliar; estado nutricional; etanol; fósforo |
topic |
Sorghum bicolor; leaf analysis; nutritional state; ethanol; phosphorus Sorghum bicolor; análise foliar; estado nutricional; etanol; fósforo |
description |
Two experiments were conducted in Typic Haplorthox in the county of Jaboticabal, SP, Brazil, with the objective of determining the effects of five phosphorus levels (0, 50, 100, 200 and 400 kg/ha of P2O5) on ethanol and stalk yield, and furthermore, of establishing parameters for sweet sorghum phosphate nutritional diagnosis. Positive responses were obtained in stalk and ethanol (l/ha) yields due to phosphate fertilization. The samples studied can be used for the diagnosis of phosphate nutrition in the sorghum crop, given that the phosphorus contents considered to be adequate for leaves +3 or +4 are situated within the following intervals: 0.281% - 0.310% and 0.248% - 0.275%, respectively for leaves recovered during the vegetative growth stage (45 days) and flowering. On the order hand, the maxim stalk yields was associated to a soil phosphorus contents of 19 µg/cm3 (H2SO4 0.05N). Reduction leaves Zn contents were observed with the highest rate of phosphorus (400 kg/ha of P2O5). |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-04-17 |
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/14360 |
url |
https://seer.sct.embrapa.br/index.php/pab/article/view/14360 |
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/14360/8263 |
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.22, n.5, maio 1987; 451-457 Pesquisa Agropecuária Brasileira; v.22, n.5, maio 1987; 451-457 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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1793416715784159232 |