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dc.contributor.authorMoreno-García, Beatrizes_ES
dc.contributor.authorGuillén, Mónicaes_ES
dc.contributor.authorQuílez Sáez de Viteri, Doloreses_ES
dc.identifier.citationAgronomy 10(4): 493 (2020)es_ES
dc.description19 Pags.- 4 Figs.- 5 Tabls.- Suppl. Mats. (1 Fig.- 2 Tabls.). © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) licensees_ES
dc.description.abstractThe great increase in livestock production in some European areas makes it necessary to recycle organic slurries and manures and to integrate them in crop production. In Northeast Spain, the application of pig slurry (PS) is being extended to alternative crops such as rice due to the great increase in pig production. However, there is a lack of information of the effect of substitution of synthetic fertilizers with pig slurry on greenhouse gas (GHG) emissions in rice crop, and this information is key for the sustainability of these agricultural systems. The aim of this study was to evaluate the effect of the substitution of mineral fertilizers by PS on GHG emissions in Mediterranean flooded rice cultivation conditions under optimal nitrogen (N) fertilization. Two field experiments were carried out in two different (contrasting) soil types with different land management. Site 1 had been cultivated for rice in the previous three years with no puddling practices. Site 2 had been cultivated for rice for more than 15 years with puddling tillage practices and had higher organic matter content than site 1. The cumulative nitrous oxide emissions during the crop season were negative at both sites, corroborating that under flooded conditions, methane is the main contributor to global warming potential rather than nitrous oxide. The substitution of mineral fertilizer with PS before seeding at the same N rate did not increase emissions in both sites. However, at site 1 (soil with lower organic matter content), the higher PS rate applied before seeding (170 kg N ha−1) increased methane emissions compared to the treatments with lower PS rate and mineral fertilizer before seeding (120 kg N ha−1) and complemented with topdressing mineral N. Thus, a sustainable strategy for inclusion of PS in rice fertilization is the application of moderate PS rates before seeding (≈120 kg N ha−1) complemented with mineral N topdressing.es_ES
dc.description.sponsorshipThis study was funded by the National Institute for Agricultural and Food Scientific Research and Technology of Spain (INIA), the Government of Aragón, FEDER, and FEADER funds (RTA2010-0126-C02-01, RTA2013-0057-C05-04 and DRU-2014-02-50-541-00-IFO-00740020007). B. Moreno-García was granted with an FPI-INIA fellowship.es_ES
dc.publisherMultidisciplinary Digital Publishing Institutees_ES
dc.relation.isversionofPublisher's versiones_ES
dc.subjectflooded ricees_ES
dc.subjectorganic fertilizationes_ES
dc.subjectpig slurryes_ES
dc.subjectnitrous oxidees_ES
dc.subjectMediterranean conditionses_ES
dc.titleGreenhouse gas emissions as affected by fertilization type (pig slurry vs. mineral) and soil management in mediterranean rice systemses_ES
dc.description.peerreviewedPeer reviewedes_ES
dc.contributor.funderInstituto Nacional de Investigación y Tecnología Agraria y Alimentaria (España)es_ES
dc.contributor.funderGobierno de Aragónes_ES
dc.contributor.funderEuropean Commissiones_ES
oprm.item.hasRevisionno ko 0 false*
dc.contributor.orcidQuílez Sáez de Viteri, Dolores [0000-0002-2638-9443]es_ES
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