Underestimated role of legume roots for soil N fertility

Detalhes bibliográficos
Autor(a) principal: Carranca, Corina
Data de Publicação: 2015
Outros Autores: Torres, Maria Odete, Madeira, Manuel
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.5/17687
Resumo: Research Article
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spelling Underestimated role of legume roots for soil N fertilityaboveground materialmixed permanent pasture15N techniquespasture typesweet lupinevisible root and noduleyellow lupineResearch ArticleNitrogen (N) is a major fertilizing element for plants. The distribution of N in legumes is influencing the efficiency of the next crop. Nitrogen storage in legumes is actually estimated by N fixation in shoots, whereas there is little knowledge on the contribution of roots and nodules to legume N and soil N. Here, we studied the contribution of roots and nodules of grain and pasture legumes to plant N and soil N in Mediterranean fields. Experiments were run under rainfed conditions for a 2-year period in three regions of Portugal. Entire plants including top plant and visible roots and nodules were sampled at the end of the growing seasons for grain legumes, sweet and yellow lupine, and over two harvests in case of pastures. N2 fixation was measured for grain legumes and pasture legumes using 15N tracing. Our results show that aboveground N concentration did not vary among legumes, but differed in the belowground tissues. Field studies show that 7–11%of total legume N was associated with roots and nodules. Data also show an allocation of 11– 14 kg N fixed t−1 belowground dry matter in indeterminate legumes, which represents half the amount of total aboveground plant. This finding demonstrates that investigation relying only on shoot Nunderestimates the role of legumes for soil N fertilityINRARepositório da Universidade de LisboaCarranca, CorinaTorres, Maria OdeteMadeira, Manuel2019-04-03T09:47:52Z20152015-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.5/17687engAgron. Sustain. Dev. (2015) 35:1095–1102DOI 10.1007/s13593-015-0297-yinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-03-06T14:47:21Zoai:www.repository.utl.pt:10400.5/17687Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T17:02:50.682561Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Underestimated role of legume roots for soil N fertility
title Underestimated role of legume roots for soil N fertility
spellingShingle Underestimated role of legume roots for soil N fertility
Carranca, Corina
aboveground material
mixed permanent pasture
15N techniques
pasture type
sweet lupine
visible root and nodule
yellow lupine
title_short Underestimated role of legume roots for soil N fertility
title_full Underestimated role of legume roots for soil N fertility
title_fullStr Underestimated role of legume roots for soil N fertility
title_full_unstemmed Underestimated role of legume roots for soil N fertility
title_sort Underestimated role of legume roots for soil N fertility
author Carranca, Corina
author_facet Carranca, Corina
Torres, Maria Odete
Madeira, Manuel
author_role author
author2 Torres, Maria Odete
Madeira, Manuel
author2_role author
author
dc.contributor.none.fl_str_mv Repositório da Universidade de Lisboa
dc.contributor.author.fl_str_mv Carranca, Corina
Torres, Maria Odete
Madeira, Manuel
dc.subject.por.fl_str_mv aboveground material
mixed permanent pasture
15N techniques
pasture type
sweet lupine
visible root and nodule
yellow lupine
topic aboveground material
mixed permanent pasture
15N techniques
pasture type
sweet lupine
visible root and nodule
yellow lupine
description Research Article
publishDate 2015
dc.date.none.fl_str_mv 2015
2015-01-01T00:00:00Z
2019-04-03T09:47:52Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.5/17687
url http://hdl.handle.net/10400.5/17687
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Agron. Sustain. Dev. (2015) 35:1095–1102
DOI 10.1007/s13593-015-0297-y
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 INRA
publisher.none.fl_str_mv INRA
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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