Use of digestate as organic amendment and source of nitrogen to vegetable crops
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.11/7828 |
Resumo: | Anaerobic digestion is a valuable process to use livestock effluents to produce green energy and a by-product called digestate with fertilising value. This work aimed at evaluating the fertilising value of the solid fraction (SF) of a digestate as an organic amendment and as a source of nitrogen to crops replacing mineral N. A field experiment was done with two consecutive vegetable crops. The treatments were: a control without fertilisation; Ni85 mineral fertilisation with 85 kg ha-1 of mineral N; fertiliser with digestate at an increasing nitrogen application rate (kg N ha-1): DG-N85, DG-N170, DG-N170+85, DG-N170+170; fertilisation with digestate together with Ni: DG-N85+Ni60, DG-N170+Ni60, DG-N170+Ni25. The results showed a soil organic amendment effect of the SF with a beneficial effect on SOM, soil pH and exchangeable bases. The SF was able to replace part of the mineral N fertilisation. The low mineralisation of the stable organic matter together with some immobilisation of mineral N from SF caused low N availability. The fertilisation planning should consider the SF ratio between the organic N (NO) and total N (TKN). Low NO:TKN ratios (~0.65) needed lower Ni addition to maintaining the biomass production similar to the mineral fertilisation. |
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Use of digestate as organic amendment and source of nitrogen to vegetable cropsAnaerobic digestionCircular economyGreen energyN use efficiencyShort carbon cycleAnaerobic digestion is a valuable process to use livestock effluents to produce green energy and a by-product called digestate with fertilising value. This work aimed at evaluating the fertilising value of the solid fraction (SF) of a digestate as an organic amendment and as a source of nitrogen to crops replacing mineral N. A field experiment was done with two consecutive vegetable crops. The treatments were: a control without fertilisation; Ni85 mineral fertilisation with 85 kg ha-1 of mineral N; fertiliser with digestate at an increasing nitrogen application rate (kg N ha-1): DG-N85, DG-N170, DG-N170+85, DG-N170+170; fertilisation with digestate together with Ni: DG-N85+Ni60, DG-N170+Ni60, DG-N170+Ni25. The results showed a soil organic amendment effect of the SF with a beneficial effect on SOM, soil pH and exchangeable bases. The SF was able to replace part of the mineral N fertilisation. The low mineralisation of the stable organic matter together with some immobilisation of mineral N from SF caused low N availability. The fertilisation planning should consider the SF ratio between the organic N (NO) and total N (TKN). Low NO:TKN ratios (~0.65) needed lower Ni addition to maintaining the biomass production similar to the mineral fertilisation.MDPIRepositório Científico do Instituto Politécnico de Castelo BrancoMonteiro, M.C.H.Carneiro, J.P.2022-01-12T11:53:16Z20212021-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.11/7828engMONTEIRO, M.C.H.; CARNEIRO, J.P. (2022) - Use of digestate as organic amendment and source of nitrogen to vegetable crops. Appl. Sci. ISSN 2076-3417.12 (1).13 p.2076-341710.3390/app12010248info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-01-16T11:48:45Zoai:repositorio.ipcb.pt:10400.11/7828Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T16:38:19.600955Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Use of digestate as organic amendment and source of nitrogen to vegetable crops |
title |
Use of digestate as organic amendment and source of nitrogen to vegetable crops |
spellingShingle |
Use of digestate as organic amendment and source of nitrogen to vegetable crops Monteiro, M.C.H. Anaerobic digestion Circular economy Green energy N use efficiency Short carbon cycle |
title_short |
Use of digestate as organic amendment and source of nitrogen to vegetable crops |
title_full |
Use of digestate as organic amendment and source of nitrogen to vegetable crops |
title_fullStr |
Use of digestate as organic amendment and source of nitrogen to vegetable crops |
title_full_unstemmed |
Use of digestate as organic amendment and source of nitrogen to vegetable crops |
title_sort |
Use of digestate as organic amendment and source of nitrogen to vegetable crops |
author |
Monteiro, M.C.H. |
author_facet |
Monteiro, M.C.H. Carneiro, J.P. |
author_role |
author |
author2 |
Carneiro, J.P. |
author2_role |
author |
dc.contributor.none.fl_str_mv |
Repositório Científico do Instituto Politécnico de Castelo Branco |
dc.contributor.author.fl_str_mv |
Monteiro, M.C.H. Carneiro, J.P. |
dc.subject.por.fl_str_mv |
Anaerobic digestion Circular economy Green energy N use efficiency Short carbon cycle |
topic |
Anaerobic digestion Circular economy Green energy N use efficiency Short carbon cycle |
description |
Anaerobic digestion is a valuable process to use livestock effluents to produce green energy and a by-product called digestate with fertilising value. This work aimed at evaluating the fertilising value of the solid fraction (SF) of a digestate as an organic amendment and as a source of nitrogen to crops replacing mineral N. A field experiment was done with two consecutive vegetable crops. The treatments were: a control without fertilisation; Ni85 mineral fertilisation with 85 kg ha-1 of mineral N; fertiliser with digestate at an increasing nitrogen application rate (kg N ha-1): DG-N85, DG-N170, DG-N170+85, DG-N170+170; fertilisation with digestate together with Ni: DG-N85+Ni60, DG-N170+Ni60, DG-N170+Ni25. The results showed a soil organic amendment effect of the SF with a beneficial effect on SOM, soil pH and exchangeable bases. The SF was able to replace part of the mineral N fertilisation. The low mineralisation of the stable organic matter together with some immobilisation of mineral N from SF caused low N availability. The fertilisation planning should consider the SF ratio between the organic N (NO) and total N (TKN). Low NO:TKN ratios (~0.65) needed lower Ni addition to maintaining the biomass production similar to the mineral fertilisation. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021 2021-01-01T00:00:00Z 2022-01-12T11:53:16Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10400.11/7828 |
url |
http://hdl.handle.net/10400.11/7828 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
MONTEIRO, M.C.H.; CARNEIRO, J.P. (2022) - Use of digestate as organic amendment and source of nitrogen to vegetable crops. Appl. Sci. ISSN 2076-3417.12 (1).13 p. 2076-3417 10.3390/app12010248 |
dc.rights.driver.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 |
MDPI |
publisher.none.fl_str_mv |
MDPI |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799130847198052352 |