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Effect of fresh and composted spent coffee grounds on lettuce growth, photosynthetic pigments and mineral composition

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dc.contributor.authorGomes, Teresa
dc.contributor.authorPereira, J.A.
dc.contributor.authorRamalhosa, Elsa
dc.contributor.authorCasal, Susana
dc.contributor.authorBaptista, Paula
dc.date.accessioned2013-09-10T11:21:22Z
dc.date.available2013-09-10T11:21:22Z
dc.date.issued2014
dc.description.abstractThe coffee industry has experienced a constant growth and, as a consequence, large amounts of residues are generated worldwide. One of the main coffee residues are spent coffee grounds (SCG), which are the solid residues obtained after preparation of the coffee beverages. References to its use as organic fertilizer in domestic cultures, especially in gardens, are common. However, scientific evidence of its effectiveness or even safety remains largely unknown. The main objective of this work was to assess the effect of SCG, both composted and uncomposted, on Lactuca sativa L. growth and mineral composition under greenhouse conditions. It is also expected to find the optimum dose of SCG that would give maximum lettuce growth. With this purpose, lettuce plants cv. “Four seasons” were grown on topsoil (control) or in topsoil mixed with different concentrations of fresh (2.5; 5; 10; 15; 20%, v/v) or composted (5; 10; 15; 20; 30%, v/v) SCG. After 39 days of transplantation, the plants were collected and used to evaluate several growth parameters, as well as photosynthetic pigments and mineral contents on leaves. The application of both fresh and composted SCG, as well as their concentrations, had significant influence on all the parameters measured. Fresh SCG stimulated the plant growth at low concentrations (2.5-5%) but without significant differences when compared to control. A similar effect was observed for composted SCG, but only when applied at high concentrations (≥10%). By contrast, the foliar-N, -P and K- contents were, in general, reduced by fresh and composted SCG. When comparing to fresh SCG, the composted SCG resulted, in average, in higher carotenoids content, foliar-N and -K contents, and plant growth. Both treatments could be used to recycle coffee grounds with demonstrated horticultural benefits.por
dc.description.sponsorshipFundação para a Ciência e Tecnologia (FCT) através do Projeto PTDC/AGR-AAM/102447/2008.por
dc.identifier.citationGomes, Teresa; Pereira, José Alberto; Ramalhosa, Elsa; Casal, Susana; Baptista, Paula (2013). Effect of fresh and composted spent coffee grounds on lettuce growth, photosynthetic pigments and mineral composition. In VII Congreso Ibérico de Agroingenieria y Ciencias Horticolas. Madridpor
dc.identifier.urihttp://hdl.handle.net/10198/8719
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherSECH e SEAgIngpor
dc.relationSpent coffee grounds: horticultural recovering program and implications in the vegetables quality and safety
dc.subjectLactuca sativapor
dc.subjectLeaf-macronutrient contentpor
dc.subjectChlorophyll a and bpor
dc.subjectCarotenoidspor
dc.titleEffect of fresh and composted spent coffee grounds on lettuce growth, photosynthetic pigments and mineral compositionpor
dc.typeconference object
dspace.entity.typePublication
oaire.awardTitleSpent coffee grounds: horticultural recovering program and implications in the vegetables quality and safety
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876-PPCDTI/PTDC%2FAGR-AAM%2F102447%2F2008/PT
oaire.citation.conferencePlaceMadridpor
oaire.citation.endPage5por
oaire.citation.startPage1por
oaire.citation.titleVII Congreso Ibérico de Agroingeniería y Ciencias Horticolaspor
oaire.fundingStream5876-PPCDTI
person.familyNamePereira
person.familyNameRamalhosa
person.familyNameBaptista
person.givenNameJosé Alberto
person.givenNameElsa
person.givenNamePaula
person.identifier.ciencia-id611F-80B2-A7C1
person.identifier.ciencia-id1A1D-FC05-A05D
person.identifier.ciencia-id7D11-FE1E-CD0F
person.identifier.orcid0000-0002-2260-0600
person.identifier.orcid0000-0003-2503-9705
person.identifier.orcid0000-0001-6331-3731
person.identifier.ridL-6798-2014
person.identifier.scopus-author-id57204366348
person.identifier.scopus-author-id6602978189
person.identifier.scopus-author-id14051688000
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspor
rcaap.typeconferenceObjectpor
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relation.isAuthorOfPublicationd74be6c0-1703-4f77-bd81-e289ec981ee3
relation.isAuthorOfPublication3f35226a-b17a-4f7d-8da1-3297105cbfe9
relation.isAuthorOfPublication.latestForDiscoveryd74be6c0-1703-4f77-bd81-e289ec981ee3
relation.isProjectOfPublication447e4be4-921d-4d0d-ac5b-e6cae5902950
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