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Nitrogen fertilization can significantly reduce the incidence of the olive fruit fly

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dc.contributor.authorRodrigues, M.A.
dc.contributor.authorCoelho, Valentim
dc.contributor.authorGouveia, Maria Eugénia
dc.contributor.authorArrobas, Margarida
dc.contributor.authorRaimundo, Soraia
dc.contributor.authorCorreia, Carlos M.
dc.contributor.authorBento, Albino
dc.date.accessioned2020-01-17T10:36:56Z
dc.date.available2020-01-17T10:36:56Z
dc.date.issued2019
dc.description.abstractThe olive fruit fly (Bactrocera oleae Rossi) is one of the most important pests of the olive groves. Its negative impact is manifested by yield reduction, due to the consumption of pulp by larvae and increased fruit drop, and loss of quality of the oil, due to oxidation phenomena. All cropping techniques that reduce the incidence of this pest are able to contribute to increase crop yield and improve olive oil quality and help reducing pesticide use. Nitrogen fertilization can greatly influence the development of the canopy and the productivity of the olive tree, although little is known about the effect of nitrogen fertilization on the incidence of this pest. Two field trials were conducted in rainfed olive groves during the years 2017 and 2018, one of the cultivar Madural and the other of the cv. Cobrançosa. Three (0, 40 and 120 kg N ha-1) and four (0, 20, 40 and 120 kg N ha-1) nitrogen rates were tested respectively in 'Madural' and 'Cobrançosa'. The results showed a very significant reduction in the level of pest incidence as the nitrogen rate increased, with the exception of 'Madural' in 2017, a year in which productivity was low as well as the overall level of pest incidence. In 2018, incidence levels varied between 60.7 and 12.7%, respectively in the N0 and N120 treatments in 'Cobrançosa' and between 70.7 and 46.7% in the treatments N0 and N120 in 'Madural'. The most fertilized treatments showed significantly higher yields in both cultivars in 2018, with the higher fruit load inducing increased water stress, with more wrinkled fruits at the beginning of autumn, and delays in maturation. Probably these were the causes which may justify the lower incidence of the pest in the treatments fertilized with the higher nitrogen rates.pt_PT
dc.description.sponsorshipprojet “BioSave: Promoção do potencial económico e da sustentabilidade dos setores do azeite e da castanha “Concurso nº 02/SAICT/2016”, projeto nº 023721.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationRodrigues, M.A.; Coelho, Valentim; Gouveia, Maria Eugénia; Arrobas, Margarida; Raimundo, Soraia; Correia, Carlos M.; Bento, Albino (2019). Nitrogen fertilization can significantly reduce the incidence of the olive fruit fly. In VI Jornada Nacional del Grupo de Olivicultura de la SECH. Madrid. ISBN 978-84-948550-6-1pt_PT
dc.identifier.isbn978-84-948550-6-1
dc.identifier.urihttp://hdl.handle.net/10198/20414
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherSociedad Española de Ciencias Hortícolaspt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/pt_PT
dc.subjectBactrocera oleaept_PT
dc.subjectOlea europaeapt_PT
dc.subjectOlive pestspt_PT
dc.subjectTradicional olive orchardspt_PT
dc.subjectRainfed olive orchardspt_PT
dc.titleNitrogen fertilization can significantly reduce the incidence of the olive fruit flypt_PT
dc.typeconference object
dspace.entity.typePublication
oaire.citation.conferencePlaceMadridpt_PT
oaire.citation.titleVI JORNADA NACIONAL DEL GRUPO DEOLIVICULTURA DE LA SECHpt_PT
person.familyNameRodrigues
person.familyNameCoelho
person.familyNameGouveia
person.familyNameArrobas
person.familyNameRaimundo
person.familyNameBento
person.givenNameManuel Ângelo
person.givenNameValentim
person.givenNameMaria Eugénia
person.givenNameMargarida
person.givenNameSoraia
person.givenNameAlbino
person.identifier.ciencia-id371D-DF0D-8D68
person.identifier.ciencia-id0618-49BC-EACE
person.identifier.ciencia-id971C-B85B-1EC0
person.identifier.ciencia-id0C14-0903-C34B
person.identifier.ciencia-idD516-325A-9AD7
person.identifier.orcid0000-0002-5367-1129
person.identifier.orcid0000-0001-5829-7669
person.identifier.orcid0000-0002-2550-9108
person.identifier.orcid0000-0002-4652-485X
person.identifier.orcid0000-0002-6505-1445
person.identifier.orcid0000-0001-5215-785X
person.identifier.ridO-1721-2016
person.identifier.ridN-9706-2016
person.identifier.scopus-author-id35270106800
person.identifier.scopus-author-id26533798200
person.identifier.scopus-author-id8575728800
person.identifier.scopus-author-id35247694000
rcaap.rightsopenAccesspt_PT
rcaap.typeconferenceObjectpt_PT
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