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Mealworm Larvae Frass Exhibits a Plant Biostimulant Effect on Lettuce, Boosting Productivity beyond Just Nutrient Release or Improved Soil Properties

2024Artigo científico Acesso aberto
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dc.contributor.authorFoughar, Meroua
dc.contributor.authorArrobas, Margarida
dc.contributor.authorRodrigues, M.A.
dc.date.accessioned2024-10-08T11:22:28Z
dc.date.available2024-10-08T11:22:28Z
dc.date.issued2024
dc.description.abstractThere is a need for alternatives or complements to synthetic fertilizers to enhance agricultural sustainability. Applying organic amendments can play a significant role in this. Insect droppings show high potential, though studies evaluating their agronomic value have only recently begun to emerge. This study compared black soldier fly (Hermetia illucens L.) and mealworm (Tenebrio molitor L.) larvae frass with another organic amendment (Nutrimais) derived from composting forestry, agro-industrial, and domestic waste. The experiment also included ammoniumnitrate at two rates [the same as the organic amendments, 50 kg ha−1 nitrogen (N) (FullR), and half that rate (HalfR)] and an unfertilized control. The study spanned two growth cycles of lettuce (Lactuca sativa L.) grown in pots, followed by unfertilized oats (Avena sativa L.) to assess the residual effects of the fertilizing treatments. Mealworm larvae frass mineralized rapidly, with an apparent N recovery of 37.4% over the two lettuce growth cycles, indicating its high availability to soil heterotrophic microorganisms. The average dry matter yield (DMY) of lettuce was the highest among all treatments (12.8 and 9.8 g plant−1 in the first and second lettuce cycles), even compared to the FullR treatment (12.2 and 7.8 g plant−1), though without significant differences. Although mealworm larvae frass exhibited a highmineralization rate, the DMY cannot be attributed solely to N supply, as plants in the FullR treatment showed better N nutritional status. Mealworm larvae frass provided strong evidence of a plant biostimulant effect, not explained by the variablesmeasured in this study. Black soldier fly larvae frass exhibited typical behavior of amoderately reactive organic amendment, while Nutrimais showed low reactivity, with a near-neutral mineralization/immobilization balance. The results suggest mealworm larvae frass is recommended for earlymaturing vegetable crops, whereas Nutrimais appearsmore suitable for perennial crops with low short-termnutrient requirements.pt_PT
dc.description.sponsorshipThe authors are grateful to the Foundation for Science and Technology (FCT, Portugal) for financial support from national funds FCT/MCTES, to CIMO (UIDB/AGR/00690/2020) and SusTEC (LA/P/0007/2020). They also thank ENTOGREEN® company for providing the insect frass.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationFoughar, Meroua; Arrobas, Margarida; Rodrigues, Manuel Ângelo (2024). Mealworm Larvae Frass Exhibits a Plant Biostimulant Effect on Lettuce, Boosting Productivity beyond Just Nutrient Release or Improved Soil Properties. Horticulturae. ISSN 2311-7524. 10:7, p. 1-19pt_PT
dc.identifier.doi10.3390/horticulturae10070711pt_PT
dc.identifier.issn2311-7524
dc.identifier.urihttp://hdl.handle.net/10198/30364
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPIpt_PT
dc.relationMountain Research Center - UIDB/00690/2020
dc.relationAssociate Laboratory for Sustainability and Tecnology in Mountain Regions - LA/P/0007/2020
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectBlack soldier fly frasspt_PT
dc.subjectHermetia illucenspt_PT
dc.subjectTenebrio molitorpt_PT
dc.subjectInsect droppingspt_PT
dc.subjectManuring effectpt_PT
dc.titleMealworm Larvae Frass Exhibits a Plant Biostimulant Effect on Lettuce, Boosting Productivity beyond Just Nutrient Release or Improved Soil Propertiespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardNumberUIDB/00690/2020
oaire.awardNumberLA/P/0007/2020
oaire.awardTitleMountain Research Center - UIDB/00690/2020
oaire.awardTitleAssociate Laboratory for Sustainability and Tecnology in Mountain Regions - LA/P/0007/2020
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00690%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/LA%2FP%2F0007%2F2020/PT
oaire.citation.issue7pt_PT
oaire.citation.startPage711pt_PT
oaire.citation.titleHorticulturaept_PT
oaire.citation.volume10pt_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
person.familyNameArrobas
person.familyNameRodrigues
person.givenNameMargarida
person.givenNameManuel Ângelo
person.identifier.ciencia-id971C-B85B-1EC0
person.identifier.ciencia-id371D-DF0D-8D68
person.identifier.orcid0000-0002-4652-485X
person.identifier.orcid0000-0002-5367-1129
person.identifier.ridO-1721-2016
person.identifier.scopus-author-id8575728800
person.identifier.scopus-author-id35270106800
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationd057ae6b-331c-4980-967d-0ce4fe1bcf8a
relation.isAuthorOfPublication43621353-fa11-4559-9b24-27eba5ad3de0
relation.isAuthorOfPublication.latestForDiscoveryd057ae6b-331c-4980-967d-0ce4fe1bcf8a
relation.isProjectOfPublication29718e93-4989-42bb-bcbc-4daff3870b25
relation.isProjectOfPublication6255046e-bc79-4b82-8884-8b52074b4384
relation.isProjectOfPublication.latestForDiscovery6255046e-bc79-4b82-8884-8b52074b4384

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