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Recycling nutrient-rich hop leaves by composting with wheat straw and farmyard manure in suitable mixtures

2021Artigo científico Acesso aberto
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dc.contributor.authorAfonso, Sandra
dc.contributor.authorArrobas, Margarida
dc.contributor.authorPereira, Ermelinda
dc.contributor.authorRodrigues, M.A.
dc.date.accessioned2018-02-19T10:00:00Z
dc.date.accessioned2021-11-23T12:12:39Z
dc.date.available2018-01-19T10:00:00Z
dc.date.available2021-11-23T12:12:39Z
dc.date.issued2021
dc.description.abstractThe harvesting of hops (Humulus lupulus L.) generates large amounts of nutrient-rich leaves that can be used in composting mixtures to add value to other organic resources on the farm. In this study, hop leaves were mixed with cow manure and wheat straw in several combinations with the aim of establishing guidelines on how farmers can manage the raw materials and better use these valuable organic resources. The composting process was monitored and the quality of the composts evaluated in relation to the effects on lettuce (Lactuca sativa L.) grown in pots over two consecutive cycles. The mixture of hop leaves with cow manure produced a stable compost after nine months of composting which may be used in horticultural crops, irrespective of the proportion of raw materials, due to their low and similar C/N ratios. However, when using mixtures of leaves and straw in proportions of less than 2:1, the composts did not mature properly, showing high C/N ratios. Their application to the soil led to a strong reduction in plant tissue N concentrations, due to biological N immobilization, which significantly reduced lettuce dry matter yield. Thus, to reduce composting time and increase the quality of the compost, the ratio leaves/straw should be as high as possible, at least 2:1. Alternatively, either the composting process should take longer, or the poorly-matured compost be applied far in advance of sowing a crop so that complementary biological processes can take place in the soil, as recorded in the second cycle of lettuce. Ash from hop stems did not benefit the composting process and proved itself not to be worth using in mixtures.en_EN
dc.description.sponsorshipThe authors are grateful to the Foundation for Science and Technology (FCT, Portugal) and European Regional Development Fund (ERDF) under Programme PT2020 for financial support to CIMO (UID/AGR/00690/2015) and also the scholarship grant of Sandra Afonso (number BD/116593/2016) under the Programme PT2020 (UID/AGR/00690/2019).
dc.description.versioninfo:eu-repo/semantics/publishedVersionen_EN
dc.identifier.citationAfonso, Sandra; Arrobas, Margarida; Pereira, Ermelinda L.; Rodrigues, M. Ângelo (2021). Recycling nutrient-rich hop leaves by composting with wheat straw and farmyard manure in suitable mixtures. Journal of Environmental Management. ISSN 0301-4797. 284, p. 1-8en_EN
dc.identifier.doi10.1016/j.jenvman.2021.112105en_EN
dc.identifier.issn0301-4797
dc.identifier.urihttp://hdl.handle.net/10198/24363
dc.language.isoeng
dc.peerreviewedyesen_EN
dc.relationUID/AGR/00690/2015
dc.relationBD/116593/2016
dc.relationMountain Research Centre
dc.subjectC/N ratioen_EN
dc.subjectCompost maturationen_EN
dc.subjectHumulus lupulusen_EN
dc.subjectLactuca sativaen_EN
dc.subjectN immobilizationen_EN
dc.subjectTotal organic carbonen_EN
dc.titleRecycling nutrient-rich hop leaves by composting with wheat straw and farmyard manure in suitable mixturesen_EN
dc.typejournal article
dspace.entity.typePublication
oaire.awardNumberUID/AGR/00690/2019
oaire.awardTitleMountain Research Centre
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FAGR%2F00690%2F2019/PT
oaire.fundingStream6817 - DCRRNI ID
person.familyNameAfonso
person.familyNameArrobas
person.familyNamePereira
person.familyNameRodrigues
person.givenNameSandra
person.givenNameMargarida
person.givenNameErmelinda
person.givenNameManuel Ângelo
person.identifier2791107
person.identifier.ciencia-idEE17-E2A7-CA4D
person.identifier.ciencia-id971C-B85B-1EC0
person.identifier.ciencia-id3916-218E-1629
person.identifier.ciencia-id371D-DF0D-8D68
person.identifier.orcid0000-0002-2464-8464
person.identifier.orcid0000-0002-4652-485X
person.identifier.orcid0000-0002-9431-5059
person.identifier.orcid0000-0002-5367-1129
person.identifier.ridHNC-5440-2023
person.identifier.ridO-1721-2016
person.identifier.scopus-author-id56033752100
person.identifier.scopus-author-id8575728800
person.identifier.scopus-author-id35222107200
person.identifier.scopus-author-id35270106800
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccessen_EN
rcaap.typearticleen_EN
relation.isAuthorOfPublication53395c17-bdda-4f8d-ad73-728075e51889
relation.isAuthorOfPublicationd057ae6b-331c-4980-967d-0ce4fe1bcf8a
relation.isAuthorOfPublication9d6b3744-286d-42bc-b363-533450bdb07c
relation.isAuthorOfPublication43621353-fa11-4559-9b24-27eba5ad3de0
relation.isAuthorOfPublication.latestForDiscoveryd057ae6b-331c-4980-967d-0ce4fe1bcf8a
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