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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.citationMoreno-García B, Guillén M, Quílez D. Response of paddy rice to fertilisation with pig slurry in northeast Spain: Strategies to optimise nitrogen use efficiency. Field Crops Research 208: 44–54 (2017)es_ES
dc.description11 Pags.- 7 Tabls.- 4 Figs.es_ES
dc.description.abstractThe increasing pig population in northeast Spain and the need to adequately manage the pig slurry (PS) generated demand the inclusion of PS in crop fertilisation plans. The aim of the present study was to maximise the amount of PS that can be applied to the crops without adverse environmental effects. Thus, a 3-year experiment was established to evaluate the response of flooded rice to different fertilisation strategies. The fertilisation strategies tested were two rates of PS applied before sowing: 170 kg NH4-N ha−1 (PS170 strategy) that would cover the entire rice N requirements and 120 kg NH4-N ha−1 (PS120 strategy) that would theoretically require N as top-dressing to reach maximum yields. These strategies were compared to the rate of mineral fertiliser applied before sowing at 120 kg NH4-N ha−1. Plant density; the presence of weeds, pests and diseases; head rice yield; and rice quality were not affected by the N source (PS or mineral). Maximum rice yields (5567–8235 kg ha−1) varied between years and were attained with the two PS fertilisation strategies. Maximum yields with the PS170 strategy were reached without top-dressing application in the three years, but nitrogen (N) as top-dressing was necessary to reach maximum yields with the PS120 strategy. The nitrogen fertiliser replacement value (NFRV) of the two PS strategies, 87% (PS170) and 96% (PS120) of ammonium N applied, were not significantly different. The high PS NFRV suggests that PS is an excellent N source and rates should be established considering PS ammonium N content. Agronomic and recovery N use efficiencies and unaccounted N were not significantly different between mineral and PS strategies when the same ammonium N rate was applied; however, when the total N was considered, N use efficiencies decreased, indicating that organic N is not taken up by the crop during the crop season.es_ES
dc.description.sponsorshipThis study was funded by the National Institute for Agricultural and Food Scientific Research and Technology of Spain (INIA) and FEDER funds (RTA2010-0126-C02-01 and RTA2013-0057-C05-04). B. Moreno-García was granted a FPI-INIA fellowship.es_ES
dc.relation.isversionofPublisher's versiones_ES
dc.subjectFlooded ricees_ES
dc.subjectPig slurryes_ES
dc.subjectNitrogen use efficiencyes_ES
dc.subjectMediterranean conditionses_ES
dc.subjectNitrogen budgetes_ES
dc.titleResponse of paddy rice to fertilisation with pig slurry in northeast Spain: Strategies to optimise nitrogen use efficiencyes_ES
dc.description.peerreviewedPeer reviewedes_ES
dc.contributor.funderInstituto Nacional de Investigación y Tecnología Agraria y Alimentaria (España)es_ES
dc.contributor.funderEuropean Commissiones_ES
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