Publication
Use of digestate as organic amendment and source of nitrogen to vegetable crops
| dc.contributor.author | Monteiro, M.C.H. | |
| dc.contributor.author | Carneiro, J.P. | |
| dc.date.accessioned | 2022-01-12T11:53:16Z | |
| dc.date.available | 2022-01-12T11:53:16Z | |
| dc.date.issued | 2021 | |
| dc.description.abstract | 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. | pt_PT |
| dc.description.version | info:eu-repo/semantics/publishedVersion | pt_PT |
| dc.identifier.citation | 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. | pt_PT |
| dc.identifier.doi | 10.3390/app12010248 | pt_PT |
| dc.identifier.issn | 2076-3417 | |
| dc.identifier.uri | http://hdl.handle.net/10400.11/7828 | |
| dc.language.iso | eng | pt_PT |
| dc.peerreviewed | yes | pt_PT |
| dc.publisher | MDPI | pt_PT |
| dc.relation.publisherversion | https://www.mdpi.com/2076-3417/12/1/248/htm | pt_PT |
| dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | pt_PT |
| dc.subject | Anaerobic digestion | pt_PT |
| dc.subject | Circular economy | pt_PT |
| dc.subject | Green energy | pt_PT |
| dc.subject | N use efficiency | pt_PT |
| dc.subject | Short carbon cycle | pt_PT |
| dc.title | Use of digestate as organic amendment and source of nitrogen to vegetable crops | pt_PT |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| oaire.citation.conferencePlace | Basel | pt_PT |
| oaire.citation.issue | 1 | pt_PT |
| oaire.citation.startPage | 248 | pt_PT |
| oaire.citation.title | Applied Sciences | pt_PT |
| oaire.citation.volume | 12 | pt_PT |
| person.familyName | Monteiro | |
| person.familyName | Carneiro | |
| person.givenName | M.C.H. | |
| person.givenName | J.P. | |
| person.identifier.ciencia-id | 5D12-6B5C-23F1 | |
| person.identifier.ciencia-id | A01D-21BA-DA55 | |
| person.identifier.orcid | 0000-0003-0101-1599 | |
| person.identifier.orcid | 0000-0002-9998-7815 | |
| person.identifier.scopus-author-id | 8570278900 | |
| rcaap.rights | openAccess | pt_PT |
| rcaap.type | article | pt_PT |
| relation.isAuthorOfPublication | 00f17bad-649e-4953-a3a4-dd8c48b67f05 | |
| relation.isAuthorOfPublication | 092a1460-9d2f-4883-ac62-e98f3cad5482 | |
| relation.isAuthorOfPublication.latestForDiscovery | 00f17bad-649e-4953-a3a4-dd8c48b67f05 |
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