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dc.contributor.authorBosch Serra, Àngela D.
dc.contributor.authorYagüe Carrasco, María Rosa
dc.contributor.authorTeira Esmatges, Maria Rosa
dc.date.accessioned2014-07-23T07:18:55Z
dc.date.available2014-07-23T07:18:55Z
dc.date.issued2014
dc.identifier.issn0022-1694
dc.identifier.urihttp://hdl.handle.net/10459.1/47433
dc.description.abstractAnthropogenic ammonia (NH3) emissions mainly result from agricultural activities where manure spreading plays a significant role. For a Mediterranean rainfed winter cereal system there is a lack of data regarding NH3 emissions. The aim of this work is to provide field data on N losses due to NH3 volatilization as a consequence of the introduction of slurries in fertilization strategies and also, to assess the influence of environmental conditions and slurry characteristics on emissions. The fertilizing strategies include the use of slurry from fattening pigs (PS), sows (PSS) and/or mineral fertilizer (M) as ammonium nitrate. Fertilizers were spread over the calcareous soil at sowing and/or at tillering at rates from 15 to 45 kg NH4+–N ha−1 for M and from 48.8 to 250.3 kg NH4+–N ha−1 for slurries. The NH3 emissions were quantified during three cropping seasons. Average losses from the total ammonium nitrogen applied ranged from 7 to 78% for M and from 6 to 64% for slurries and they were not directly proportional to the amounts of applied ammonium. The best results on NH3 volatilization reduction were registered when soil water content (SWC, 0–30 cm) was below 56% of its field capacity and also, when slurry dry matter (DM) was in the interval of 6.1–9.3% for PS or much lower (0.8%) for PSS. High slurry DM favoured crust formation and the lower rates promoted infiltration, both of which reduced NH3 emissions. Nevertheless, at tillering, the lower DM content was the most effective in controlling emissions (<9 kg NH3–N ha−1) and equalled M fertilizer in cumulative NH3 loss (p > 0.05). A single slurry application at tillering did not negatively affect yield biomass. The combining of recommended timing of applications with slurry DM content and SWC should allow producers to minimize volatilization while maintaining financial benefits.ca_ES
dc.language.isoengca_ES
dc.publisherElsevierca_ES
dc.relation.isformatofVersió postprint del document publicat a https://doi.org/10.1016/j.atmosenv.2013.11.044ca_ES
dc.relation.ispartofAtmospheric Environment, 2014, vol. 84, p. 204–212ca_ES
dc.rights(c) Elsevier, 2014ca_ES
dc.subjectBest management practicesca_ES
dc.subjectEnvironmental impactca_ES
dc.subjectAgricultural gas emissionsca_ES
dc.subjectNitrogenca_ES
dc.subjectPig slurryca_ES
dc.subjectSemiarid climateca_ES
dc.subject.otherPurinsca_ES
dc.subject.otherMedi ambient -- Anàlisi d'impacte -- Adobs orgànicsca_ES
dc.titleAmmonia emissions from different fertilizing strategies in Mediterranean rainfed winter cerealsca_ES
dc.typearticleca_ES
dc.identifier.idgrec020415
dc.type.versionacceptedVersionca_ES
dc.rights.accessRightsinfo:eu-repo/semantics/openAccessca_ES
dc.identifier.doihttps://doi.org/10.1016/j.atmosenv.2013.11.044


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