Carbon and nitrogen mineralisation in soils and nutrient efficiency of digestates from fruit and vegetable wastes

A significant amount of fruit and vegetable wastes is generated annually in markets, supermarkets, restaurants and households. Anaerobic digestion allows their appropriate management and helps to complete the cycle of the circular economy as it converts wastes into resources: biogas, a renewable sou...

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Detalles Bibliográficos
Autores: Álvarez-Alonso, Cristina, Clemente Carrillo, Rafael, Bernal Calderón, M. Pilar
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2022
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/304324
Acceso en línea:http://hdl.handle.net/10261/304324
Access Level:acceso abierto
Palabra clave:Agronomic value
Mineralisation
Cardoon
Maize
Nutrient recovery efficiency
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spelling Carbon and nitrogen mineralisation in soils and nutrient efficiency of digestates from fruit and vegetable wastesÁlvarez-Alonso, CristinaClemente Carrillo, RafaelBernal Calderón, M. PilarAgronomic valueMineralisationCardoonMaizeNutrient recovery efficiencyA significant amount of fruit and vegetable wastes is generated annually in markets, supermarkets, restaurants and households. Anaerobic digestion allows their appropriate management and helps to complete the cycle of the circular economy as it converts wastes into resources: biogas, a renewable source of energy, and digestate, rich in nutrients of interest for agriculture. The aim of this study was to define the agronomic value of digestate from fruit and vegetable wastes. Two digestates from fruit and vegetable residues were used in incubation experiments for C and N mineralisation in the soil, and in a pot experiment with crops (cardoon and maize), to calculate their fertiliser potential in comparison with a mineral fertiliser. The digestate quickly mineralised in the soil and nitrification processes led to fast formation of NO3−-N. However, increasing the digestate application rate enhanced N-immobilisation and reduced N-mineralisation in the soil. The addition of digestates to the soil resulted in adequate plant growth and nutrient composition, without any negative effects on the plants or soil. However, special attention should be paid to the salt accumulation in the soil for long-term digestate application. The nutrient recovery efficiency indicated that digestate could replace mineral fertiliser completely in cardoon crops and partially (44.5–82.6%) for maize, with an associated economic benefit. The salinity of the digestates limits their quality and their agricultural use to salt-sensitive crops should be limited.Open Access funding provided thanks to the CRUE-CSIC agreement with Springer Nature. This research was carried out with the financial assistance of the European Union under ENI CBC Mediterranean Sea Basin assistance of the European Union, through the project: Employing circular economy approach for OFMSW management within the Mediterranean countries CEOMED (Ref.: A_B.4.2_0058).Peer reviewedSpringer NatureConferencia de Rectores de las Universidades EspañolasConsejo Superior de Investigaciones Científicas (España)European CommissionConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202320232022info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10261/304324reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)InglésThe underlying dataset has been published as supplementary material of the article in the publisher platform at DOI 10.1007/s42729-022-01049-7https://doi.org/10.1007/s42729-022-01049-7Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3043242026-05-22T06:33:51Z
dc.title.none.fl_str_mv Carbon and nitrogen mineralisation in soils and nutrient efficiency of digestates from fruit and vegetable wastes
title Carbon and nitrogen mineralisation in soils and nutrient efficiency of digestates from fruit and vegetable wastes
spellingShingle Carbon and nitrogen mineralisation in soils and nutrient efficiency of digestates from fruit and vegetable wastes
Álvarez-Alonso, Cristina
Agronomic value
Mineralisation
Cardoon
Maize
Nutrient recovery efficiency
title_short Carbon and nitrogen mineralisation in soils and nutrient efficiency of digestates from fruit and vegetable wastes
title_full Carbon and nitrogen mineralisation in soils and nutrient efficiency of digestates from fruit and vegetable wastes
title_fullStr Carbon and nitrogen mineralisation in soils and nutrient efficiency of digestates from fruit and vegetable wastes
title_full_unstemmed Carbon and nitrogen mineralisation in soils and nutrient efficiency of digestates from fruit and vegetable wastes
title_sort Carbon and nitrogen mineralisation in soils and nutrient efficiency of digestates from fruit and vegetable wastes
dc.creator.none.fl_str_mv Álvarez-Alonso, Cristina
Clemente Carrillo, Rafael
Bernal Calderón, M. Pilar
author Álvarez-Alonso, Cristina
author_facet Álvarez-Alonso, Cristina
Clemente Carrillo, Rafael
Bernal Calderón, M. Pilar
author_role author
author2 Clemente Carrillo, Rafael
Bernal Calderón, M. Pilar
author2_role author
author
dc.contributor.none.fl_str_mv Conferencia de Rectores de las Universidades Españolas
Consejo Superior de Investigaciones Científicas (España)
European Commission
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Agronomic value
Mineralisation
Cardoon
Maize
Nutrient recovery efficiency
topic Agronomic value
Mineralisation
Cardoon
Maize
Nutrient recovery efficiency
description A significant amount of fruit and vegetable wastes is generated annually in markets, supermarkets, restaurants and households. Anaerobic digestion allows their appropriate management and helps to complete the cycle of the circular economy as it converts wastes into resources: biogas, a renewable source of energy, and digestate, rich in nutrients of interest for agriculture. The aim of this study was to define the agronomic value of digestate from fruit and vegetable wastes. Two digestates from fruit and vegetable residues were used in incubation experiments for C and N mineralisation in the soil, and in a pot experiment with crops (cardoon and maize), to calculate their fertiliser potential in comparison with a mineral fertiliser. The digestate quickly mineralised in the soil and nitrification processes led to fast formation of NO3−-N. However, increasing the digestate application rate enhanced N-immobilisation and reduced N-mineralisation in the soil. The addition of digestates to the soil resulted in adequate plant growth and nutrient composition, without any negative effects on the plants or soil. However, special attention should be paid to the salt accumulation in the soil for long-term digestate application. The nutrient recovery efficiency indicated that digestate could replace mineral fertiliser completely in cardoon crops and partially (44.5–82.6%) for maize, with an associated economic benefit. The salinity of the digestates limits their quality and their agricultural use to salt-sensitive crops should be limited.
publishDate 2022
dc.date.none.fl_str_mv 2022
2023
2023
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/304324
url http://hdl.handle.net/10261/304324
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv The underlying dataset has been published as supplementary material of the article in the publisher platform at DOI 10.1007/s42729-022-01049-7
https://doi.org/10.1007/s42729-022-01049-7
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Springer Nature
publisher.none.fl_str_mv Springer Nature
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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