Different responses of soybean cultivars to potassium

Detalhes bibliográficos
Autor(a) principal: Rossetto, Claudia A. V.
Data de Publicação: 1995
Outros Autores: Fernandes, Dirceu M., Ishimura, Issao, Rosolem, Ciro A.
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/4418
Resumo: Soybean (Glycine max (L.) Merrill) is known to have a high ability as a potassium extractor, and different cultivars show different potassium requirements. An experiment was run to study the potassium nutrition of soybean as related to plant characteristics. Six soybean cultivars (FT-2, Bossier, IAC-11, IAC-17, IAC-18 and IAC-19) were grown in 6 kg pots filled with the topsoil of a Dark Red Latosol (sandy loam), either with and without K fertilization. The plants were harvested 70 days after emergence. Soybean response to potassium was not related to growth habit or group of maturation. There was a different response to K. The cultivars IAC-18 and FT-2 were less tolerant to K deficiency. Potassium deficiency in the leaves was not related to top dry matter production. With K fertilization soybean plants showed small root volume and higher ratio canopy/root. With high K in soil, all of the cultivars showed higher nodulation.
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spelling Different responses of soybean cultivars to potassiumDiferentes resposta de cutivares de soja e potássioroot; nodulationraiz;nodulaçãoSoybean (Glycine max (L.) Merrill) is known to have a high ability as a potassium extractor, and different cultivars show different potassium requirements. An experiment was run to study the potassium nutrition of soybean as related to plant characteristics. Six soybean cultivars (FT-2, Bossier, IAC-11, IAC-17, IAC-18 and IAC-19) were grown in 6 kg pots filled with the topsoil of a Dark Red Latosol (sandy loam), either with and without K fertilization. The plants were harvested 70 days after emergence. Soybean response to potassium was not related to growth habit or group of maturation. There was a different response to K. The cultivars IAC-18 and FT-2 were less tolerant to K deficiency. Potassium deficiency in the leaves was not related to top dry matter production. With K fertilization soybean plants showed small root volume and higher ratio canopy/root. With high K in soil, all of the cultivars showed higher nodulation.A soja (Glycine max (L.) Merrill) apresenta grande capacidade de exploração do potássio no solo. Além disso, diferentes cultivares apresentam exigências diferentes em potássio. O objetivo deste trabalho foi estudar o comportamento de seis cultivares de soja quanto à nutrição potássica, relacionando-a aos parâmetros de crescimento. O experimento foi instalado em vasos de 6 kg de terra proveniente de um Latossolo Vermelho-Escuro de textura média, em casa de vegetação. As cultivares utilizadas foram: FT-2, Bossier, IAC- 11, IAC- 17, IAC- 18 e IAC- 19, em presença ou ausência de adubação potássica. A coleta das plantas foi realizada aos 70 dias após a emergência. A resposta da soja ao potássio aplicado não esteve relacionada ao hábito de crescimento ou ciclo das plantas. Houve diferentes respostas das cultivares ao potássio, sendo que 'IAC- 18' e 'FT-2' foram as mais prejudicadas pela falta de aplicação do nutriente. A ocorrência e a intensidade dos sintomas de deficiência de potássio não estiveram relacionadas à produção de matéria seca da parte aérea da planta. Com a aplicação de potássio ao solo, as plantas apresentaram menor peso e menor volume de raizes, e maior relação parte aérea/raiz, em peso. Plantas bem nutridas com potássio apresentaram maior peso de matéria seca de nódulos.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraRossetto, Claudia A. V.Fernandes, Dirceu M.Ishimura, IssaoRosolem, Ciro A.1995-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/4418Pesquisa Agropecuaria Brasileira; v.30, n.10, out. 1995; 1225-1231Pesquisa Agropecuária Brasileira; v.30, n.10, out. 1995; 1225-12311678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/4418/1704info:eu-repo/semantics/openAccess2011-08-25T13:03:37Zoai:ojs.seer.sct.embrapa.br:article/4418Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2011-08-25T13:03:37Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Different responses of soybean cultivars to potassium
Diferentes resposta de cutivares de soja e potássio
title Different responses of soybean cultivars to potassium
spellingShingle Different responses of soybean cultivars to potassium
Rossetto, Claudia A. V.
root; nodulation
raiz;nodulação
title_short Different responses of soybean cultivars to potassium
title_full Different responses of soybean cultivars to potassium
title_fullStr Different responses of soybean cultivars to potassium
title_full_unstemmed Different responses of soybean cultivars to potassium
title_sort Different responses of soybean cultivars to potassium
author Rossetto, Claudia A. V.
author_facet Rossetto, Claudia A. V.
Fernandes, Dirceu M.
Ishimura, Issao
Rosolem, Ciro A.
author_role author
author2 Fernandes, Dirceu M.
Ishimura, Issao
Rosolem, Ciro A.
author2_role author
author
author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Rossetto, Claudia A. V.
Fernandes, Dirceu M.
Ishimura, Issao
Rosolem, Ciro A.
dc.subject.por.fl_str_mv root; nodulation
raiz;nodulação
topic root; nodulation
raiz;nodulação
description Soybean (Glycine max (L.) Merrill) is known to have a high ability as a potassium extractor, and different cultivars show different potassium requirements. An experiment was run to study the potassium nutrition of soybean as related to plant characteristics. Six soybean cultivars (FT-2, Bossier, IAC-11, IAC-17, IAC-18 and IAC-19) were grown in 6 kg pots filled with the topsoil of a Dark Red Latosol (sandy loam), either with and without K fertilization. The plants were harvested 70 days after emergence. Soybean response to potassium was not related to growth habit or group of maturation. There was a different response to K. The cultivars IAC-18 and FT-2 were less tolerant to K deficiency. Potassium deficiency in the leaves was not related to top dry matter production. With K fertilization soybean plants showed small root volume and higher ratio canopy/root. With high K in soil, all of the cultivars showed higher nodulation.
publishDate 1995
dc.date.none.fl_str_mv 1995-10-01
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/4418
url https://seer.sct.embrapa.br/index.php/pab/article/view/4418
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/4418/1704
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.30, n.10, out. 1995; 1225-1231
Pesquisa Agropecuária Brasileira; v.30, n.10, out. 1995; 1225-1231
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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