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Evaluation of soil nitrogen availability by growing tufts of nitrophilic species in an intensively grazed biodiverse legume-rich pasture

2010Journal article Open access
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dc.contributor.authorRodrigues, M.A.
dc.contributor.authorGomes, Vanessa
dc.contributor.authorDias, L.G.
dc.contributor.authorPires, Jaime
dc.contributor.authorAguiar, Carlos
dc.contributor.authorArrobas, Margarida
dc.date.accessioned2010-12-22T09:51:16Z
dc.date.available2010-12-22T09:51:16Z
dc.date.issued2010
dc.description.abstractBiodiverse legume-rich pastures (BLRP) have been recommended for extensive animal production since they can improve productivity and pasture quality. However, the consequences for the N balance within the agro-system, due to the increase in biological N2 fixation, must be monitored. A field trial was carried out to evaluate the soil N availability in a BLRP in comparison with an adjacent unsown pasture. The field experiment consisted of growing tufts of nitrophilic species (turnip, Brassica campestris and rye, Secale cereale) in the pastures rounded by PVC rings. Soil inorganic-N levels were monitored during a period of one year. The potentially available soil N was determined by growing ryegrass (Lolium multiflorum) in a pot experiment and carrying out several chemical extraction methods. The mean values of N recovered by field-grown turnip and rye were, respectively, 30.6 and 31.1 kg ha–1 in BLRP, not statistically higher than that recovered in the unsown pasture. This is consistent with the very low levels of soil inorganic-N observed both in BLRP and the unsown pasture. Nitrogen recovered by ryegrass grown in pots was significantly higher in the soil collected from the BLRP than in soil from the unsown pasture. In this study, plant-available inorganic-N appeared as a strong limiting factor for the growth of the non-legume component. The BLRP seems to be currently environmentally sound, since the risk of N loss is practically non-existent. However, the potentially mineralisable organic N is increasing, which requires a further monitoring of the soil N dynamic as the pasture ages.por
dc.description.sponsorshipCIMO (Mountain Research Centre) and project BioPast (PTDC/AGR-AAM/69637/2006)por
dc.identifier.citationRodrigues, Manuel; Gomes, Vanessa; Dias, Luís; Pires, Jaime; Aguiar, Carlos; Arrobas, Margarida (2010) Evaluation of soil nitrogen availability by growing tufts of nitrophilic species in an intensively grazed biodiverse legume-rich pasture. Spanish Journal of Agricultural Research. ISSN 1695-971X. 8:4. p. 1058-1067por
dc.identifier.doi10.5424/sjar/2010084-1399
dc.identifier.eissn2171-9292
dc.identifier.issn1695-971X
dc.identifier.urihttp://hdl.handle.net/10198/2930
dc.language.isoengpor
dc.peerreviewedyespor
dc.peerreviewedyes
dc.publisherInstituto Nacional de Investigación y Tecnología Agraria y Alimentariapor
dc.relationBioPast - An Integrated Approach to Sown Biodiverse Permanent Pastures Rich in Legumes
dc.subjectChemical testspor
dc.subjectMultispecies pasturespor
dc.subjectPotential N lossespor
dc.subjectSoil available N indicatorspor
dc.subjectSoil inorganic-Npor
dc.titleEvaluation of soil nitrogen availability by growing tufts of nitrophilic species in an intensively grazed biodiverse legume-rich pasturepor
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleBioPast - An Integrated Approach to Sown Biodiverse Permanent Pastures Rich in Legumes
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FAGR-AAM%2F69637%2F2006/PT
oaire.citation.endPage1067por
oaire.citation.startPage1058por
oaire.citation.titleSpanish Journal of Agricultural Researchpor
oaire.fundingStream3599-PPCDT
person.familyNameRodrigues
person.familyNameDias
person.familyNameAguiar
person.familyNameArrobas
person.givenNameManuel
person.givenNameLuís G.
person.givenNameCarlos
person.givenNameMargarida
person.identifier.ciencia-id371D-DF0D-8D68
person.identifier.ciencia-id2F11-9092-FAAF
person.identifier.ciencia-id5912-C8F4-7686
person.identifier.ciencia-id971C-B85B-1EC0
person.identifier.orcid0000-0002-5367-1129
person.identifier.orcid0000-0002-1210-4259
person.identifier.orcid0000-0001-8643-7112
person.identifier.orcid0000-0002-4652-485X
person.identifier.ridO-1721-2016
person.identifier.ridI-3933-2014
person.identifier.scopus-author-id35270106800
person.identifier.scopus-author-id23569169900
person.identifier.scopus-author-id54413830100
person.identifier.scopus-author-id8575728800
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublication43621353-fa11-4559-9b24-27eba5ad3de0
relation.isAuthorOfPublicationeac8c166-4056-4ed0-8d8d-7ecb2c4481a5
relation.isAuthorOfPublicatione0f72c9d-ad86-44ee-a41e-c02a70dc6336
relation.isAuthorOfPublicationd057ae6b-331c-4980-967d-0ce4fe1bcf8a
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