N2 fixation by two lupine species under different soil management systems. Transfer of fixed N2 from legume to intercropped eucalyptus
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | https://doi.org/10.19084/rca.16286 |
Resumo: | The rate and pattern of symbiotic fixation and N credit by white lupine as affected by soil tillage, and yellow lupine affected by soil amendment with eucalyptus harvest residues were evaluated; also, fixed N transferred from yellow lupine to the intercropped eucalyptus was assessed. Lupine species growing in sandy soils with low nutrient status fixed >94% N2 with the indigenous soil rhizobium, in two sites (Pegões, Óbidos). Soil disturbance and harvest residues incorporation did not affect the fixing capacity of both lupines. Positive N inputs (>+69 kg N ha-1) were estimated for both lupines, which is relevant in a rotation or association with non-legume crops. Nitrogen concentration in newly-planted eucalyptus was 23% lower in harvest residues amended soil and 36% greater by the addition of mineral-15N compared with organic fertilization (yellow lupine). Mineral-N use efficiency by eucalyptus seedlings was low (4%) which may be associated with the small root development (shoot:root ratio=4.3). Organically fertilized trees showed 15N enrichment thirteen times smaller than mineral-15N fertilized trees. |
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N2 fixation by two lupine species under different soil management systems. Transfer of fixed N2 from legume to intercropped eucalyptusA fixação do N2 por duas espécies de tremoceiro em diferentes sistemas de gestão do solo. Transferência do N2 fixado pela tremocilha para o eucalipto em consociaçãoGeralThe rate and pattern of symbiotic fixation and N credit by white lupine as affected by soil tillage, and yellow lupine affected by soil amendment with eucalyptus harvest residues were evaluated; also, fixed N transferred from yellow lupine to the intercropped eucalyptus was assessed. Lupine species growing in sandy soils with low nutrient status fixed >94% N2 with the indigenous soil rhizobium, in two sites (Pegões, Óbidos). Soil disturbance and harvest residues incorporation did not affect the fixing capacity of both lupines. Positive N inputs (>+69 kg N ha-1) were estimated for both lupines, which is relevant in a rotation or association with non-legume crops. Nitrogen concentration in newly-planted eucalyptus was 23% lower in harvest residues amended soil and 36% greater by the addition of mineral-15N compared with organic fertilization (yellow lupine). Mineral-N use efficiency by eucalyptus seedlings was low (4%) which may be associated with the small root development (shoot:root ratio=4.3). Organically fertilized trees showed 15N enrichment thirteen times smaller than mineral-15N fertilized trees.Grain legumes are grown worldwide and cultivated primarily for their grains which are harvested at maturity and marketed as fresh or dry products, rich in proteins for human consumption and animal feeding. However, their cultivation has been neglected for many years in the European Union (EU), which only produces about five million tonnes, especially peas (3 Mt), fababeans (1.2 Mt) and soybeans (0.8 Mt), and imports two-thirds of protein required for feed uses (Crépon et al., 2004). Grain legumes are expected to increase the eco-efficiency of agricultural production due to their ability to produce proteins of high quality without using nitrogen (N) fertilisers (Gaillard and Nemecek, 2004). In this way, it is supposed that energy use by grain legumes and N losses (nitrate, ammonia, etc.) are much lower than in non-legume crops. The current European Common Agricultural Policy favours the introduction of grain legumes in crop rotations where they are economically beneficial for farmers in several regions by their value to the next crop, but no specific financial support has been decided yet.Sociedade de Ciências Agrárias de Portugal2019-01-03T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttps://doi.org/10.19084/rca.16286eng2183-041X0871-018XCarranca, CorinaMadeira, ManuelTorres, Maria Odeteinfo: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:RCAAP2022-09-06T09:24:16Zoai:ojs.revistas.rcaap.pt:article/16286Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T15:30:45.705410Repositório 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 |
N2 fixation by two lupine species under different soil management systems. Transfer of fixed N2 from legume to intercropped eucalyptus A fixação do N2 por duas espécies de tremoceiro em diferentes sistemas de gestão do solo. Transferência do N2 fixado pela tremocilha para o eucalipto em consociação |
title |
N2 fixation by two lupine species under different soil management systems. Transfer of fixed N2 from legume to intercropped eucalyptus |
spellingShingle |
N2 fixation by two lupine species under different soil management systems. Transfer of fixed N2 from legume to intercropped eucalyptus Carranca, Corina Geral |
title_short |
N2 fixation by two lupine species under different soil management systems. Transfer of fixed N2 from legume to intercropped eucalyptus |
title_full |
N2 fixation by two lupine species under different soil management systems. Transfer of fixed N2 from legume to intercropped eucalyptus |
title_fullStr |
N2 fixation by two lupine species under different soil management systems. Transfer of fixed N2 from legume to intercropped eucalyptus |
title_full_unstemmed |
N2 fixation by two lupine species under different soil management systems. Transfer of fixed N2 from legume to intercropped eucalyptus |
title_sort |
N2 fixation by two lupine species under different soil management systems. Transfer of fixed N2 from legume to intercropped eucalyptus |
author |
Carranca, Corina |
author_facet |
Carranca, Corina Madeira, Manuel Torres, Maria Odete |
author_role |
author |
author2 |
Madeira, Manuel Torres, Maria Odete |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Carranca, Corina Madeira, Manuel Torres, Maria Odete |
dc.subject.por.fl_str_mv |
Geral |
topic |
Geral |
description |
The rate and pattern of symbiotic fixation and N credit by white lupine as affected by soil tillage, and yellow lupine affected by soil amendment with eucalyptus harvest residues were evaluated; also, fixed N transferred from yellow lupine to the intercropped eucalyptus was assessed. Lupine species growing in sandy soils with low nutrient status fixed >94% N2 with the indigenous soil rhizobium, in two sites (Pegões, Óbidos). Soil disturbance and harvest residues incorporation did not affect the fixing capacity of both lupines. Positive N inputs (>+69 kg N ha-1) were estimated for both lupines, which is relevant in a rotation or association with non-legume crops. Nitrogen concentration in newly-planted eucalyptus was 23% lower in harvest residues amended soil and 36% greater by the addition of mineral-15N compared with organic fertilization (yellow lupine). Mineral-N use efficiency by eucalyptus seedlings was low (4%) which may be associated with the small root development (shoot:root ratio=4.3). Organically fertilized trees showed 15N enrichment thirteen times smaller than mineral-15N fertilized trees. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-01-03T00:00:00Z |
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 |
https://doi.org/10.19084/rca.16286 |
url |
https://doi.org/10.19084/rca.16286 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
2183-041X 0871-018X |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Sociedade de Ciências Agrárias de Portugal |
publisher.none.fl_str_mv |
Sociedade de Ciências Agrárias de Portugal |
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 |
repository.mail.fl_str_mv |
|
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1799130173873848320 |