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Management of nitrogen-rich legume cover crops as mulch in traditional olive orchards

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dc.contributor.authorFerreira, Isabel Q.
dc.contributor.authorRodrigues, M.A.
dc.contributor.authorClaro, Ana Marília
dc.contributor.authorArrobas, Margarida
dc.date.accessioned2017-01-11T15:55:42Z
dc.date.available2017-01-11T15:55:42Z
dc.date.issued2015
dc.description.abstractA low-input agricultural system needs a natural source of nitrogen (N). Legume species can fix great amounts of N that can be subsequently used by a nonlegume crop. In this study three legume cover crops were grown in traditional olive orchards in northeastern Portugal from October 2009 to May 2010, and the aboveground biomass was mechanically destroyed and left on the ground as a mulch. In the following growing season, from October 2010 to May 2011, two nitrophilic plant species were grown in circular microplots of 154 mm surrounded by polyvinyl chloride rings to assess the soil N availability. The N fixed by the legume cover crops, estimated by the difference technique, was shown to vary from 79.7 to 187.5 kg N ha−1. The nitrophilic plant species identified a small peak of soil available N in the autumn of 2010, probably resulting from the mineralization of the root system of the legume species. In the next spring, the increase of soil-available N in the plots where the legume cover crops had been grown, in comparison to the control plot, was residual. The great amounts of N present in the mulched materials seem to disappear without having entered the soil. Mulching with high-N content biomass may be troublesome due to the high risk of N losses probably by ammonia (NH3) volatilization. Copyright © Taylor & Francis Group, LLC.pt_PT
dc.description.sponsorshipThis project was supported by FEDER funds through the Operational Program for Competitiveness Factors (COMPETE) and national funds through Foundation on Science and Technology under Project No. PTDC/AGR-AAM/098326/2008.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationFerreira, Isabel Q.; Rodrigues, M.A.; Claro, Ana Marília; Arrobas, Margarida (2016). Management of nitrogen-rich legume cover crops as mulch in traditional olive orchards. Communications in Soil Science and Plant Analysis. ISSN 0010-3624. 46:15, p. 1881-1894pt_PT
dc.identifier.doi10.1080/00103624.2015.1059847pt_PT
dc.identifier.issn0010-3624
dc.identifier.urihttp://hdl.handle.net/10198/13728
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.relationCover cropping: the decisive strategy for the sustainable management of the rainfed olive orchards
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectGreen manurept_PT
dc.subjectHairy vetchpt_PT
dc.subjectN recoverypt_PT
dc.subjectOlea europaeapt_PT
dc.subjectOrganic farmingpt_PT
dc.subjectSoil managementpt_PT
dc.titleManagement of nitrogen-rich legume cover crops as mulch in traditional olive orchardspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleCover cropping: the decisive strategy for the sustainable management of the rainfed olive orchards
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876-PPCDTI/PTDC%2FAGR-AAM%2F098326%2F2008/PT
oaire.citation.endPage1894pt_PT
oaire.citation.issue15pt_PT
oaire.citation.startPage1881pt_PT
oaire.citation.titleCommunications in Soil Science and Plant Analysispt_PT
oaire.citation.volume46pt_PT
oaire.fundingStream5876-PPCDTI
person.familyNameRodrigues
person.familyNameArrobas
person.givenNameManuel
person.givenNameMargarida
person.identifier.ciencia-id371D-DF0D-8D68
person.identifier.ciencia-id971C-B85B-1EC0
person.identifier.orcid0000-0002-5367-1129
person.identifier.orcid0000-0002-4652-485X
person.identifier.ridO-1721-2016
person.identifier.scopus-author-id35270106800
person.identifier.scopus-author-id8575728800
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication43621353-fa11-4559-9b24-27eba5ad3de0
relation.isAuthorOfPublicationd057ae6b-331c-4980-967d-0ce4fe1bcf8a
relation.isAuthorOfPublication.latestForDiscoveryd057ae6b-331c-4980-967d-0ce4fe1bcf8a
relation.isProjectOfPublicationa53354a4-58fe-4c00-8367-37c7e32639ea
relation.isProjectOfPublication.latestForDiscoverya53354a4-58fe-4c00-8367-37c7e32639ea

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