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Leguminous cover crops improve the profitability and the sustainability of rainfed olive (Olea europaea L.) orchards: from soil biology to physiology of yield determination

2015Conference paper Open access
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dc.contributor.authorCorreia, Carlos M.
dc.contributor.authorBrito, Cátia
dc.contributor.authorSampaio, A.
dc.contributor.authorDias, Alberto
dc.contributor.authorBacelar, Eunice
dc.contributor.authorGonçalves, Berta C.C.
dc.contributor.authorFerreira, Helena
dc.contributor.authorMoutinho-Pereira, José
dc.contributor.authorRodrigues, M.A.
dc.date.accessioned2018-02-06T12:35:27Z
dc.date.available2018-02-06T12:35:27Z
dc.date.issued2015
dc.description.abstractThe olive sector has a crucial economic, social, cultural and ecological relevance in the Mediterranean region, where tillage and herbicides application still are generalized practices. However, these techniques oppose to the recommendations of UE policy. Thus, other methods are needed to reduce adverse environmental impacts and to improve biodiversity, soil carbon sink and fertility, to save fossil fuels and to increase yield and the safety and nutritional value of food products. Meanwhile, since Mediterranean basin is particularly vulnerable to climate change, including lower precipitation in summer, olive tree will experiment some hard changes, mainly under rainfed conditions. Therefore, we propose an adequate management of cover crops to shift tillage and herbicides, in order to minimize runoff and evaporation water losses, conserve soil moisture storage and promote the infiltration of water in soil. The experiment was carried out during 4 years on a commercial orchard (cv. Cobrançosa) in Northeast Portugal. The treatments laid out were: (1) ordinary tillage techniques (OT) used by local growers (two tillage trips per year); (2) cover crop with self-reseeding annual legume species (AL); (3) natural vegetation fertilized (NVF) with 60 kg N hm􀃭2 (as in OT); (4) natural vegetation (NV) left unfertilized. The results revealed that AL treatment is the best option, reaching 37, 53 and 95% higher cumulative yield than NVF, OT and NV, respectively, in a closely association with greater physiological performance during the summer, mainly evidenced by lower oxidative damage and by favourable changes in water status and net photosynthetic rate, due to lower stomatal and mesophyll limitations. Moreover, the AL covered soil presented considerable microbial diversity and enzymatic activities, which may contribute to promote and conserve soil quality and health, as well the stability of ecosystems. Thus, leguminous cover crops improve the profitability and the sustainability of rainfed olive orchards.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationCorreia, Carlos; Brito, Cátia; Sampaio, A.; Dias, A.A.; Bacelar, Eunice; Gonçalves, Berta; Ferreira, Helena; Moutinho-Pereira, José; Rodrigues, M.A. (2015). Leguminous cover crops improve the profitability and the sustainability of rainfed olive (Olea europaea L.) orchards: from soil biology to physiology of yield determination. Procedia Environmental Sciences. ISSN 1878-0296. 29, p. 282-283 e In 4th International Conference on Agriculture and Horticulture (AGRI). Amsterdampt_PT
dc.identifier.doi10.1016/j.proenv.2015.07.213pt_PT
dc.identifier.urihttp://hdl.handle.net/10198/15576
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.subjectCover croppingpt_PT
dc.subjectOlivept_PT
dc.subjectRainfed orchardspt_PT
dc.subjectPhysiologypt_PT
dc.subjectSoil biologypt_PT
dc.subjectSustainabilitypt_PT
dc.titleLeguminous cover crops improve the profitability and the sustainability of rainfed olive (Olea europaea L.) orchards: from soil biology to physiology of yield determinationpt_PT
dc.typeconference paper
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.endPage283pt_PT
oaire.citation.startPage282pt_PT
oaire.citation.titleAgriculture and Climate Change - Adapting Crops to Increased Uncertainty (AGRI 2015). Procedia Environmental Sciencespt_PT
oaire.citation.volume29pt_PT
oaire.fundingStream5876-PPCDTI
person.familyNameRodrigues
person.givenNameManuel Ângelo
person.identifier.ciencia-id371D-DF0D-8D68
person.identifier.orcid0000-0002-5367-1129
person.identifier.ridO-1721-2016
person.identifier.scopus-author-id35270106800
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typeconferenceObjectpt_PT
relation.isAuthorOfPublication43621353-fa11-4559-9b24-27eba5ad3de0
relation.isAuthorOfPublication.latestForDiscovery43621353-fa11-4559-9b24-27eba5ad3de0
relation.isProjectOfPublicationa53354a4-58fe-4c00-8367-37c7e32639ea
relation.isProjectOfPublication.latestForDiscoverya53354a4-58fe-4c00-8367-37c7e32639ea

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