The effect of increasing levels of lime, magnesium, manganese and boron on the growth and nitrogen fixation of Stylosanthes guyanensis

Detalhes bibliográficos
Autor(a) principal: Vargas, Milton Alexandre T.
Data de Publicação: 2014
Outros Autores: Döbereiner, Johanna
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/17165
Resumo: Four greenhouse experiments were carried out to study the negative effect of liming found previously when tropical forage legumes, especially Stylosanthes are grown in a red-yellow podzolic soil frequently occurring on the hill pastures of Rio de Janeiro State. Five levels each of magnesium, manganese and boron were studied with five levels of lime in incomplete factorial designs. None of the elements completely eliminated the decreases in yield observed when the pH was increased from 4.8 to 6.5, however manganase and boron lessened the effect. In young plants (during the first 50 days) liming to pH 6.8 reduced both nodulation and yield by half. Older plants (after 70 days) were less sensitive and yield decreases were less than 30%. However, nodulation and nitrogen fixation increased with liming up to pH 6.2. These conflicting results show the importance of seperating the nutrition of plant growth and legume-Rhizobium symbiosis.
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spelling The effect of increasing levels of lime, magnesium, manganese and boron on the growth and nitrogen fixation of Stylosanthes guyanensisEfeito de níveis crescentes de calagem, manganês, magnésio e boro na simbiose e desenvolvimento vegetativo do Stylosanthes guyanensisMinor element deficiencies on legume symbiosis; liming – negative effect on tropical legumesElementos menores na simbiose das leguminosas; calagem - efeitos negativos em leguminosas tropicaisFour greenhouse experiments were carried out to study the negative effect of liming found previously when tropical forage legumes, especially Stylosanthes are grown in a red-yellow podzolic soil frequently occurring on the hill pastures of Rio de Janeiro State. Five levels each of magnesium, manganese and boron were studied with five levels of lime in incomplete factorial designs. None of the elements completely eliminated the decreases in yield observed when the pH was increased from 4.8 to 6.5, however manganase and boron lessened the effect. In young plants (during the first 50 days) liming to pH 6.8 reduced both nodulation and yield by half. Older plants (after 70 days) were less sensitive and yield decreases were less than 30%. However, nodulation and nitrogen fixation increased with liming up to pH 6.2. These conflicting results show the importance of seperating the nutrition of plant growth and legume-Rhizobium symbiosis.Foram feitos quatro experimentos em casa de vegetação com um solo podzólico vermelho-amarelo, para se estudar os efeitos negativos da calagem na produção de matéria seca do Stylosanthes guyanensis Mohlenbrok, e a possível eliminação destes efeitos com a adição de B, Mn ou Mg. Foram testados cinco níveis de cada um destes elementos com cinco níveis de calagem que elevou o pH do solo de 4,8 até 6,5 aproximadamente. Nenhum dos elementos testados eliminou completamente o efeito deletério da calagem, mas o manganês e o boro conseguiram aliviá-lo até certo ponto. Em plantas mais novas (até 50 dias), a calagem reduziu a nodulação e produção de forragem à metade quando o pH foi elevado a 6,8. Plantas colhidas mais tarde (após 70 dias) recuperaram-se parcialmente, ocorrendo uma diminuição de apenas 30% enquanto que a nodulação e fixação de N2 aumentaram com a calagem, atingindo valores máximos no pH 6,2. Estes resultados indicam a importância de se estudar separadamente a nutrição da planta em si e a da simbiose para elucidar problemas como o presente.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraVargas, Milton Alexandre T.Döbereiner, Johanna2014-04-15info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/17165Pesquisa Agropecuaria Brasileira; v.9, n.3, 1974: Série Zootecnia; 21-28Pesquisa Agropecuária Brasileira; v.9, n.3, 1974: Série Zootecnia; 21-281678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/17165/11498info:eu-repo/semantics/openAccess2014-04-15T18:54:16Zoai:ojs.seer.sct.embrapa.br:article/17165Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-04-15T18:54:16Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv The effect of increasing levels of lime, magnesium, manganese and boron on the growth and nitrogen fixation of Stylosanthes guyanensis
Efeito de níveis crescentes de calagem, manganês, magnésio e boro na simbiose e desenvolvimento vegetativo do Stylosanthes guyanensis
title The effect of increasing levels of lime, magnesium, manganese and boron on the growth and nitrogen fixation of Stylosanthes guyanensis
spellingShingle The effect of increasing levels of lime, magnesium, manganese and boron on the growth and nitrogen fixation of Stylosanthes guyanensis
Vargas, Milton Alexandre T.
Minor element deficiencies on legume symbiosis; liming – negative effect on tropical legumes
Elementos menores na simbiose das leguminosas; calagem - efeitos negativos em leguminosas tropicais
title_short The effect of increasing levels of lime, magnesium, manganese and boron on the growth and nitrogen fixation of Stylosanthes guyanensis
title_full The effect of increasing levels of lime, magnesium, manganese and boron on the growth and nitrogen fixation of Stylosanthes guyanensis
title_fullStr The effect of increasing levels of lime, magnesium, manganese and boron on the growth and nitrogen fixation of Stylosanthes guyanensis
title_full_unstemmed The effect of increasing levels of lime, magnesium, manganese and boron on the growth and nitrogen fixation of Stylosanthes guyanensis
title_sort The effect of increasing levels of lime, magnesium, manganese and boron on the growth and nitrogen fixation of Stylosanthes guyanensis
author Vargas, Milton Alexandre T.
author_facet Vargas, Milton Alexandre T.
Döbereiner, Johanna
author_role author
author2 Döbereiner, Johanna
author2_role author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Vargas, Milton Alexandre T.
Döbereiner, Johanna
dc.subject.por.fl_str_mv Minor element deficiencies on legume symbiosis; liming – negative effect on tropical legumes
Elementos menores na simbiose das leguminosas; calagem - efeitos negativos em leguminosas tropicais
topic Minor element deficiencies on legume symbiosis; liming – negative effect on tropical legumes
Elementos menores na simbiose das leguminosas; calagem - efeitos negativos em leguminosas tropicais
description Four greenhouse experiments were carried out to study the negative effect of liming found previously when tropical forage legumes, especially Stylosanthes are grown in a red-yellow podzolic soil frequently occurring on the hill pastures of Rio de Janeiro State. Five levels each of magnesium, manganese and boron were studied with five levels of lime in incomplete factorial designs. None of the elements completely eliminated the decreases in yield observed when the pH was increased from 4.8 to 6.5, however manganase and boron lessened the effect. In young plants (during the first 50 days) liming to pH 6.8 reduced both nodulation and yield by half. Older plants (after 70 days) were less sensitive and yield decreases were less than 30%. However, nodulation and nitrogen fixation increased with liming up to pH 6.2. These conflicting results show the importance of seperating the nutrition of plant growth and legume-Rhizobium symbiosis.
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/17165
url https://seer.sct.embrapa.br/index.php/pab/article/view/17165
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/17165/11498
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.9, n.3, 1974: Série Zootecnia; 21-28
Pesquisa Agropecuária Brasileira; v.9, n.3, 1974: Série Zootecnia; 21-28
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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