Publication
N2O emissions from soil amended with cattle slurry under mediterranean conditions
| dc.contributor.author | Carneiro, J.P. | |
| dc.contributor.author | Coutinho, João | |
| dc.contributor.author | Trindade, Henrique | |
| dc.date.accessioned | 2014-10-22T14:57:34Z | |
| dc.date.available | 2014-10-22T14:57:34Z | |
| dc.date.issued | 2013 | |
| dc.description.abstract | N2O emissions are affected by several factors, including type of fertilizer, edafo-climatic conditions and mitigation measures applied. A field experiment was carried out in central Portugal for two consecutive years, to evaluate the effect over soil N2O emissions originated from the application of cattle slurry (CS) to a double-cropping system producing maize and oats. The use of a nitrification inhibitor (DCD) was evaluated as emission mitigation measure. A mineral fertilizer treatment (MIN) and a Control were included and the DCD effects were tested together with MIN (MIN+DCD) and CS (CS+DCD). Total N input was equal for all fertilizing treatments (oat 80 kg N ha- 1; maize 170 kg N ha-1). N2O fluxes were measure on 165 sampling dates, using a photoacoustic spectroscopic infrared gas analyzer. The most important fluxes were observed 8- 10 days after fertilizer incorporation and during the following 20-40 days. Annual N2O-N losses were higher in the first year, with a wettest autumn and a warmer summer than usual. The highest values were measured with the use of mineral fertilizers (4.65 and 4.21 kg N ha-1 in MIN+DCD and MIN, respectively), which were 60-70% higher than those measured with slurry application or without fertilization (1.85, 1.55 and 1.33 kg N ha-1 in CS+DCD, CS and Control, respectively). Mean annual values of emission factor based on N application (EF) were 0.76, 0.63, 0.12 and 0.07%, in MIN+DCD, MIN, CS and CS+DCD, respectively. The DCD use, namely with mineral fertilizer, didn’t produce an evident effect on total N2O losses. | por |
| dc.identifier.citation | CARNEIRO, J.P. [et al.] (2013) - N2O emissions from soil amended with cattle slurry under mediterranean conditions.In Hassouna, M. ; and Guingand N. (Ed.), Emissions of Gas and Dust from Livestock. Paris : INRA & IFIP. p. 109-112. (ISBN: 978-2-85969-221-6). | por |
| dc.identifier.isbn | 978-2-85969-221-6 | |
| dc.identifier.uri | http://hdl.handle.net/10400.11/2593 | |
| dc.language.iso | eng | por |
| dc.publisher | INRA - IFIP | por |
| dc.subject | GHG emissions | por |
| dc.subject | Nitrogen | por |
| dc.subject | Soil fertilization | por |
| dc.subject | Nitrification inhibitor | por |
| dc.title | N2O emissions from soil amended with cattle slurry under mediterranean conditions | por |
| dc.type | conference object | |
| dspace.entity.type | Publication | |
| oaire.citation.endPage | 112 | por |
| oaire.citation.startPage | 109 | por |
| oaire.citation.title | Emissions of Gas and Dust from Livestock | por |
| person.familyName | Carneiro | |
| person.givenName | J.P. | |
| person.identifier.ciencia-id | A01D-21BA-DA55 | |
| person.identifier.orcid | 0000-0002-9998-7815 | |
| person.identifier.scopus-author-id | 8570278900 | |
| rcaap.rights | openAccess | por |
| rcaap.type | conferenceObject | por |
| relation.isAuthorOfPublication | 092a1460-9d2f-4883-ac62-e98f3cad5482 | |
| relation.isAuthorOfPublication.latestForDiscovery | 092a1460-9d2f-4883-ac62-e98f3cad5482 |
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