Publication
A smart controlled-release fertilizer improved soil fertility but not olive tree physiology and yield
| dc.contributor.author | Silva, Ermelinda | |
| dc.contributor.author | Arrobas, Margarida | |
| dc.contributor.author | Gonçalves, Alexandre | |
| dc.contributor.author | Martins, Sandra | |
| dc.contributor.author | Raimundo, Soraia | |
| dc.contributor.author | Pinto, Luís | |
| dc.contributor.author | Brito, Cátia | |
| dc.contributor.author | Moutinho-Pereira, José | |
| dc.contributor.author | Correia, Carlos M. | |
| dc.contributor.author | Rodrigues, M.A. | |
| dc.date.accessioned | 2023-02-17T10:56:00Z | |
| dc.date.available | 2023-02-17T10:56:00Z | |
| dc.date.issued | 2021 | |
| dc.description.abstract | The use of a controlled-release fertilizer (CRF) was studied in a traditional rainfed olive grove in the northeast of Portugal where precipitation is very irregular, particularly in the spring. The objective of the study was to assess whether a CRF can improve the olive tree' s performance compared to a conventional nitrogen (N) fertilizer (CF), by supplying N gradually and reducing the risk of potential N loss from leaching. The fertilized treatments showed better plant N nutritional status, which resulted in enhanced net photosynthesis and higher leaf concentrations of total soluble sugars, chlorophylls and soluble proteins which, in turn, increased olive yield by 43% in comparison to the unfertilized control. Meanwhile, CRF show some advantages over the CF, although by an unexpected effect. Not in a direct way, by improving trees performance, but by enhancing soil fertility. The CRF treatments showed higher leveis of inorganic N in the soil by autumn, an aspect that at the outset could be interpreted as nega tive, since it could lead to N loss by leaching, but that proved to be a factor that may be behind the increase in the ol'ganic carbon, kjeldahl nitrogen and glomalin-related soil proteins. Thus, the availability of soil inürganlc-N in the autumn, in a climate in which excess precipitation and the risk of ieaching usually only occur in winter, led to weeds growth that seem to act as a catch crop, capturing residual inorganic N. Additionally, they contribute to protect the soil from erosion and to increase soi! organic matter, aspects that can benefit the agrosystem in the long-term. | pt_PT |
| dc.description.sponsorship | Ermelinda Silva acknowledge the financiai support provided by national funds through FCT (PD/BD/128274/2017), under PhD AgriChains (PD/00122/2012) and from the European Social Funds and the Regional Operational Programme Norte 2020. This study was also supported by CITAB research unit (UIDB/04033/2020). The research was integrated in the activities of the Operational Group "Novas práticas em olivais de sequeiro: estratégias de mitigação e adaptação às alterações climáticas", funded by PT2020 and EAFRD (European Agricultural Fund for Rural Development). Ermelinda Silva also acknowledges the financiai support from NORTE 2020 throughout the ,CERES project (NORTE-OI-0145-FEDER-000082), funded by the Fundo Europeu de Desenvolvimento Regional (FEDER) and project NORTE-06-3559-FSE-000I03 funded by the Fundo Social Europeu (FSE), Livro | pt_PT |
| dc.description.version | info:eu-repo/semantics/publishedVersion | pt_PT |
| dc.identifier.citation | Silva, Ermelinda; Arrobas, Margarida; Gonçalves, Alexandre; Martins, Sandra; Raimundo, Soraia; Pinto, Luís; Brito, Cátia; Moutinho-Pereira, José; Correia, Carlos M.; Rodrigues, M.A. (2021). A smart controlled-release fertilizer improved soil fertility but not olive tree physiology and yield. In Ana Cristina Ramos; José Alberto Pereira; Nuno Rodrigues (Eds.) 9º Simpósio Nacional de Olivicultura: livro de resumos. Oeiras | pt_PT |
| dc.identifier.uri | http://hdl.handle.net/10198/27028 | |
| dc.language.iso | por | pt_PT |
| dc.peerreviewed | yes | pt_PT |
| dc.publisher | Associação Portuguesa de Horticultura | pt_PT |
| dc.relation | Mitigation measures to improve physiology and productivity of olive trees under abiotic stresses | |
| dc.relation | Centre for the Research and Technology of Agro-Environmental and Biological Sciences | |
| dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | pt_PT |
| dc.subject | Olea europaeo | pt_PT |
| dc.subject | Net photosynthesis | pt_PT |
| dc.subject | Nitrogen fertilization | pt_PT |
| dc.subject | Soil organic carbono | pt_PT |
| dc.subject | Research Subject Categories::FORESTRY, AGRICULTURAL SCIENCES and LANDSCAPE PLANNING::Soil science | pt_PT |
| dc.title | A smart controlled-release fertilizer improved soil fertility but not olive tree physiology and yield | pt_PT |
| dc.type | conference object | |
| dspace.entity.type | Publication | |
| oaire.awardTitle | Mitigation measures to improve physiology and productivity of olive trees under abiotic stresses | |
| oaire.awardTitle | Centre for the Research and Technology of Agro-Environmental and Biological Sciences | |
| oaire.awardURI | info:eu-repo/grantAgreement/FCT//PD%2FBD%2F128274%2F2017/PT | |
| oaire.awardURI | info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04033%2F2020/PT | |
| oaire.citation.conferencePlace | Oeiras | pt_PT |
| oaire.citation.endPage | 88 | pt_PT |
| oaire.citation.startPage | 88 | pt_PT |
| oaire.citation.title | 9º Simpósio Nacional de Olivicultura: livro de resumos | pt_PT |
| oaire.fundingStream | 6817 - DCRRNI ID | |
| person.familyName | Arrobas | |
| person.familyName | Raimundo | |
| person.familyName | Rodrigues | |
| person.givenName | Margarida | |
| person.givenName | Soraia | |
| person.givenName | Manuel | |
| person.identifier.ciencia-id | 971C-B85B-1EC0 | |
| person.identifier.ciencia-id | 0C14-0903-C34B | |
| person.identifier.ciencia-id | 371D-DF0D-8D68 | |
| person.identifier.orcid | 0000-0002-4652-485X | |
| person.identifier.orcid | 0000-0002-6505-1445 | |
| person.identifier.orcid | 0000-0002-5367-1129 | |
| person.identifier.rid | O-1721-2016 | |
| person.identifier.scopus-author-id | 8575728800 | |
| person.identifier.scopus-author-id | 35270106800 | |
| project.funder.identifier | http://doi.org/10.13039/501100001871 | |
| project.funder.identifier | http://doi.org/10.13039/501100001871 | |
| project.funder.name | Fundação para a Ciência e a Tecnologia | |
| project.funder.name | Fundação para a Ciência e a Tecnologia | |
| rcaap.rights | openAccess | pt_PT |
| rcaap.type | conferenceObject | pt_PT |
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