Efficiency of commercial inoculants and native Rhizobium strains in six forage legumes on a cerrado soil
Autor(a) principal: | |
---|---|
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/16893 |
Resumo: | A field experiment was carried out with the leumes Centrosema pubescens, Stylosanthes capitata, S. bracteata, Macroptilium atropurpureum, Galactia striata and Calopogonium mucunoides in a virgin cerrado soil in order to study the efficiency of commercial inoculants and of native Rhizobium strains. The statistical design was a complete factorial 3 x 6 in randomized blocks. The treatments were: a) check, b) inoculation and c) inoculation + 75 kg/ha N. The soil was not limed, but an additional treatment of 1 t/ha of lime was included with two of the legumes. The inoculation had no effect on the forage legumes studied except for the Centrosema pubescens, where inoculation increased the nodulation, dry weight and total N of the plants, compared to the check. The treatment receiving nitrogen was the best for C. pubescens, Macroptilium atropurpureum, Calopogonium mucunoider and Galactia striata indicating that symbiósis was not efficient in these species. Under the low soil fertility conditions of the experiment, the symbiosis with the native strains was sufficient to supply all the nitrogen necessary to Stylosanthes capitata and S. bracteata. The addition of lime to Centrosema pubescens and Stylosanthes capitata improved the nodulation, total N and dry weight of plants. The results indicate that the commercial inoculants tested were not satisfactory for the species studied. The nitrogenase activity level in the treatments that received no inoculation indicates the presence of a native nitrogen-fixing microflora in the soil. The selection of Rhizobium strains from within the native population is suggested as a promising method to obtain more adequate inoculants for the "cerrados" region. |
id |
EMBRAPA-4_3d3da9565e4faaf5bfb6a428ec928ece |
---|---|
oai_identifier_str |
oai:ojs.seer.sct.embrapa.br:article/16893 |
network_acronym_str |
EMBRAPA-4 |
network_name_str |
Pesquisa Agropecuária Brasileira (Online) |
repository_id_str |
|
spelling |
Efficiency of commercial inoculants and native Rhizobium strains in six forage legumes on a cerrado soilEficiência de inoculantes comerciais de estirpes nativas de Rhizobium para seis leguminosas forrageiras em um solo de cerradoforage legumes; inoculation; native strains; Rhizobium; cerradoleguminosas forrageiras; inoculação; Rhizobium; estirpes nativas; cerradoA field experiment was carried out with the leumes Centrosema pubescens, Stylosanthes capitata, S. bracteata, Macroptilium atropurpureum, Galactia striata and Calopogonium mucunoides in a virgin cerrado soil in order to study the efficiency of commercial inoculants and of native Rhizobium strains. The statistical design was a complete factorial 3 x 6 in randomized blocks. The treatments were: a) check, b) inoculation and c) inoculation + 75 kg/ha N. The soil was not limed, but an additional treatment of 1 t/ha of lime was included with two of the legumes. The inoculation had no effect on the forage legumes studied except for the Centrosema pubescens, where inoculation increased the nodulation, dry weight and total N of the plants, compared to the check. The treatment receiving nitrogen was the best for C. pubescens, Macroptilium atropurpureum, Calopogonium mucunoider and Galactia striata indicating that symbiósis was not efficient in these species. Under the low soil fertility conditions of the experiment, the symbiosis with the native strains was sufficient to supply all the nitrogen necessary to Stylosanthes capitata and S. bracteata. The addition of lime to Centrosema pubescens and Stylosanthes capitata improved the nodulation, total N and dry weight of plants. The results indicate that the commercial inoculants tested were not satisfactory for the species studied. The nitrogenase activity level in the treatments that received no inoculation indicates the presence of a native nitrogen-fixing microflora in the soil. The selection of Rhizobium strains from within the native population is suggested as a promising method to obtain more adequate inoculants for the "cerrados" region.Experimento de campo num solo virgem de cerrado, em Brasília, DF, com as leguminosas: Centrosema pubescens, Styloanthes cupitata, Macroptilium atropurpureum, Galactia striata e Calopogonium mucunoides, com o fim de estudar a eficiência de inoculantes comerciais e de estirpes nativas de Rhizobium. O delineamento experimental foi o de blocos ao acaso, com quatro repetições, utilizando-se um fatorial completo de 3 x 6. Os tratamentos foram: a) testemunha, b) inoculação, e c) inoculação + 75 kg/ha de N. Não foi feita calagem do solo, mas foi incluído um tratamento adicional de 1 t/ha de calcário, em duas leguminosas. A inoculação nas leguminosas estudadas não produziu efeito benéfico, exceto na Centrosema pubescens, na qual elevou a nodulação, o N total e a produção de massa seca, em relação à testemunha. O tratamento com adubação nitrogenada obteve os melhores resultados em Centrosema pubescens, Macroptilium atropurpureum, Calopogonium macunoides e Galactia striata, indicando que a simbiose foi pouco efetiva nessas espécies. No baixo nível de fertilização usado no experimento, a simbiose com as estirpes nativas foi suficiente para suprir todo o nitrogénio necessário à Stylosanthes capitata e à S. bracteata. A adição de calcário aumentou a nodulação, o N total e a produção de forragem da Centrosema pubercens e do Stylosanthes capitata. Os resultados indicam que os inoculantes comerciais testados não foram eficientes para as espécies estudadas. O nível de atividade da nitrogenase nas parcelas que não receberam inoculação indicou a presença no solo de uma microflora autóctone com habilidade de fixar N2. A seleção de estirpes de Rhizobium dentro desta população nativa apresenta-se como um método promissor para a obtenção de inoculantes mais adequados para a região dos cerrados.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraVargas, Milton Alexandre T.Suhet, Allert Rosa2014-04-15info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/16893Pesquisa Agropecuaria Brasileira; v.16, n.3, mar. 1981; 357-362Pesquisa Agropecuária Brasileira; v.16, n.3, mar. 1981; 357-3621678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/16893/11236info:eu-repo/semantics/openAccess2014-04-15T19:39:18Zoai:ojs.seer.sct.embrapa.br:article/16893Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-04-15T19:39:18Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Efficiency of commercial inoculants and native Rhizobium strains in six forage legumes on a cerrado soil Eficiência de inoculantes comerciais de estirpes nativas de Rhizobium para seis leguminosas forrageiras em um solo de cerrado |
title |
Efficiency of commercial inoculants and native Rhizobium strains in six forage legumes on a cerrado soil |
spellingShingle |
Efficiency of commercial inoculants and native Rhizobium strains in six forage legumes on a cerrado soil Vargas, Milton Alexandre T. forage legumes; inoculation; native strains; Rhizobium; cerrado leguminosas forrageiras; inoculação; Rhizobium; estirpes nativas; cerrado |
title_short |
Efficiency of commercial inoculants and native Rhizobium strains in six forage legumes on a cerrado soil |
title_full |
Efficiency of commercial inoculants and native Rhizobium strains in six forage legumes on a cerrado soil |
title_fullStr |
Efficiency of commercial inoculants and native Rhizobium strains in six forage legumes on a cerrado soil |
title_full_unstemmed |
Efficiency of commercial inoculants and native Rhizobium strains in six forage legumes on a cerrado soil |
title_sort |
Efficiency of commercial inoculants and native Rhizobium strains in six forage legumes on a cerrado soil |
author |
Vargas, Milton Alexandre T. |
author_facet |
Vargas, Milton Alexandre T. Suhet, Allert Rosa |
author_role |
author |
author2 |
Suhet, Allert Rosa |
author2_role |
author |
dc.contributor.none.fl_str_mv |
|
dc.contributor.author.fl_str_mv |
Vargas, Milton Alexandre T. Suhet, Allert Rosa |
dc.subject.por.fl_str_mv |
forage legumes; inoculation; native strains; Rhizobium; cerrado leguminosas forrageiras; inoculação; Rhizobium; estirpes nativas; cerrado |
topic |
forage legumes; inoculation; native strains; Rhizobium; cerrado leguminosas forrageiras; inoculação; Rhizobium; estirpes nativas; cerrado |
description |
A field experiment was carried out with the leumes Centrosema pubescens, Stylosanthes capitata, S. bracteata, Macroptilium atropurpureum, Galactia striata and Calopogonium mucunoides in a virgin cerrado soil in order to study the efficiency of commercial inoculants and of native Rhizobium strains. The statistical design was a complete factorial 3 x 6 in randomized blocks. The treatments were: a) check, b) inoculation and c) inoculation + 75 kg/ha N. The soil was not limed, but an additional treatment of 1 t/ha of lime was included with two of the legumes. The inoculation had no effect on the forage legumes studied except for the Centrosema pubescens, where inoculation increased the nodulation, dry weight and total N of the plants, compared to the check. The treatment receiving nitrogen was the best for C. pubescens, Macroptilium atropurpureum, Calopogonium mucunoider and Galactia striata indicating that symbiósis was not efficient in these species. Under the low soil fertility conditions of the experiment, the symbiosis with the native strains was sufficient to supply all the nitrogen necessary to Stylosanthes capitata and S. bracteata. The addition of lime to Centrosema pubescens and Stylosanthes capitata improved the nodulation, total N and dry weight of plants. The results indicate that the commercial inoculants tested were not satisfactory for the species studied. The nitrogenase activity level in the treatments that received no inoculation indicates the presence of a native nitrogen-fixing microflora in the soil. The selection of Rhizobium strains from within the native population is suggested as a promising method to obtain more adequate inoculants for the "cerrados" region. |
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/16893 |
url |
https://seer.sct.embrapa.br/index.php/pab/article/view/16893 |
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/16893/11236 |
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.16, n.3, mar. 1981; 357-362 Pesquisa Agropecuária Brasileira; v.16, n.3, mar. 1981; 357-362 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 |
_version_ |
1793416668859334656 |