Feasibility of stabilised nitrogen fertilisers decreasing greenhouse gas emissions under optimal management in sprinkler irrigated conditions

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dc.bibliographicCitation.titleAgriculture, Ecosystems & Environmenten
dc.bibliographicCitation.volume290es_ES
dc.contributor.authorMateo-Marín, Noemíes_ES
dc.contributor.authorQuílez y Sáez de Viteri, Doloreses_ES
dc.contributor.authorGuillén Castillo, Mónicaes_ES
dc.contributor.authorIsla Climente, Ramónes_ES
dc.coverage.spatialSuelos y riegoses_ES
dc.date.accessioned2020-09-10T06:44:41Z
dc.date.available2020-09-10T06:44:41Z
dc.date.issued2020es_ES
dc.description.abstractStabilised nitrogen (N) fertilisers with nitrification and urease inhibitors have been proposed to abate greenhouse gas (GHG) emissions in agrosystems. Nevertheless, differences in their application and in the management of water and nitrogen rates make it difficult to evaluate their actual utility. The aim of this study was to analyse the possibility for GHG emissions reduction in a 3-year rotation (maize-maize-wheat) by substituting the traditional split-urea application to maize by a single side-dress application of stabilised urea fertiliser. The experiment was performed in 24 drainage lysimeters in two contrasting soil types (Shallow and Deep) under efficient irrigation practices and adjusted N rates under Mediterranean conditions. Nitrous oxide (N2O) and methane (CH4) were measured using static closed unvented chambers, and the soil mineral N was monitored through periodic soil samplings. CH4 emissions were generally negligible with occasional tendency the soil acting as a sink more than as a net source. Direct N2O emissions during the whole rotation showed lower values when a nitrification inhibitor (3,4-dimethylpyrazole phosphate) was added than with conventional urea (Deep soil: 73% lower, p < 0.05; Shallow soil: 60% lower, ns). Urease inhibitors (N-(n-butyl) thiophosphoric triamide and monocarbamide dihydrogen sulphate) could not abate direct N2O emissions, and their effect depended on the soil type. However, all stabilised fertilisers mitigated N2O emissions in Deep soil when scaled by grain yield (average 54%). Indirect N2O emissions associated with nitrate leaching were not affected by the treatments but contributed more to total N2O emissions in Shallow soil (12%) than in Deep soil (6%). These results suggest that adequate use of nitrification inhibitors could have environmental benefits without lessening agronomic production. © 2019 Elsevier B.V.en
dc.description.statusPublishedes_ES
dc.identifier.citationAgriculture, Ecosystems and Environment, vol. 290, (2020)
dc.identifier.urihttp://hdl.handle.net/10532/5065
dc.language.isoenes_ES
dc.relation.doi10.1016/j.agee.2019.106725es_ES
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/*
dc.subject.agrovocInhibidores de la nitrificaciónes
dc.subject.agrovocInhibidores de la ureasaes
dc.subject.agrovocAbonos nitrogenadoses
dc.subject.agrovocRiego por aspersiónes
dc.subject.agrovocÓxido nitrosoes
dc.subject.agrovocMetanoes
dc.titleFeasibility of stabilised nitrogen fertilisers decreasing greenhouse gas emissions under optimal management in sprinkler irrigated conditionsen
dc.typeJournal Contribution*
dc.type.refereedRefereedes_ES
dc.type.specifiedArticlees_ES

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