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Phosphorus losses to surface runoff waters after application of digestate to a soil over fertilised with phosphorus.

2021Journal article Open access
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dc.contributor.authorMonteiro, M.C.H.
dc.contributor.authorCarneiro, J.P.
dc.date.accessioned2021-11-29T15:18:36Z
dc.date.available2021-11-29T15:18:36Z
dc.date.issued2021
dc.description.abstractAnaerobic digestates from biogas plants can be used as agricultural fertilisers providing recycling nitrogen (N) and other nutrients for crop needs. It is still unclear the impact on phosphorus (P) losses to runoff waters of digestates as sources of N instead of inorganic N fertilisers in over fertilised soils with P. A field experiment was done in a sandy and acidic soil high in P. The experimental design was completely randomised with five treatments. The inorganic N fertilisation (90 kg ha−1) was done in four treatments, those with past P inputs of the following: (i) inorganic N and P fertilisers (Ni/MF), (ii) organic amendments (pig or duck dry slurry-Ni/PS and Ni/DS or cattle manure compost-Ni/CM). Digestate was applied in plots with past P input of cattle slurry (DG/CS) providing also 90 kg N ha−1. Ryegrass was sowed as cover crop. The concentration of total dissolved P in runoff waters was high in all treatments and ranged between 0.5 (Ni/PS) and 2.6 mg L−1 (DG/CS). These runoff waters pose a risk of non-source P pollution for fresh waters. In soils with low P sorption capacity and over fertilised with P, the fertilisation with anaerobic digestate as the only source of N to crops increased the risk of P losses to runoff waters compared with inorganic N fertilisation. Therefore, the amount of digestate applied to soil must be calculated considering its N:P ratio in order to not exceed the crop P requirement.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationMONTEIRO, M.C.H.; CARNEIRO, J.P. (2021) - Phosphorus losses to surface runoff waters after application of digestate to a soil over fertilised with phosphorus. ISSN 1567-7230. 232:439. 12 p..pt_PT
dc.identifier.doi10.1007/s11270-021-05382-ypt_PT
dc.identifier.issn1567-7230
dc.identifier.urihttp://hdl.handle.net/10400.11/7722
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherSpringerpt_PT
dc.relation.publisherversionhttps://link.springer.com/article/10.1007/s11270-021-05382-ypt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectAnaerobic digestatept_PT
dc.subjectEutrophicationpt_PT
dc.subjectOrganic fertilisationpt_PT
dc.subjectSoil legacy phosphoruspt_PT
dc.subjectWater qualitypt_PT
dc.titlePhosphorus losses to surface runoff waters after application of digestate to a soil over fertilised with phosphorus.pt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.issue10pt_PT
oaire.citation.titleWater, Air, & Soil Pollutionpt_PT
oaire.citation.volume232pt_PT
person.familyNameMonteiro
person.familyNameCarneiro
person.givenNameM.C.H.
person.givenNameJ.P.
person.identifier.ciencia-id5D12-6B5C-23F1
person.identifier.ciencia-idA01D-21BA-DA55
person.identifier.orcid0000-0003-0101-1599
person.identifier.orcid0000-0002-9998-7815
person.identifier.scopus-author-id8570278900
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication00f17bad-649e-4953-a3a4-dd8c48b67f05
relation.isAuthorOfPublication092a1460-9d2f-4883-ac62-e98f3cad5482
relation.isAuthorOfPublication.latestForDiscovery092a1460-9d2f-4883-ac62-e98f3cad5482

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