Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/44264
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dc.contributor.authorYagüe Carrasco, María Rosa-
dc.contributor.authorBosch-Serra, Ángela D.-
dc.contributor.authorBoixadera, Jaume-
dc.date.accessioned2012-01-16T08:52:11Z-
dc.date.available2012-01-16T08:52:11Z-
dc.date.issued2012-02-
dc.identifier.citationYagüe MR, Bosch-Serra AD, Boixadera J. Measurement and estimation of the fertiliser value of pig slurry by physicochemical models: Usefulness and constraints. Biosystems Engineering 111(2): 206-216 (2012)es_ES
dc.identifier.issn1537-5110-
dc.identifier.urihttp://hdl.handle.net/10261/44264-
dc.description38 Pags., 4 Figs., 5 Tabls. The definitive version is available at: http://www.sciencedirect.com/science/journal/15375110es_ES
dc.description.abstractPig slurries (PS) are widely applied to soil as fertilisers. Compositional variability, as shown in this study, is the main constraint on their efficient use. Slurry samples, collected from 126 commercial pig farms were analysed and organic nitrogen (ON), ammoniacal nitrogen (AN), total nitrogen (TN), total potassium (TK), total phosphorus (TP) content, pH, EC (electrical conductivity), DM (dry matter) and OM (organic matter) quantified. Relationships between major nutrient contents of PS and its physical and chemical properties were analysed. AN and TK were linearly related to EC (p < 0.0001) for values lower than 5.6 kg [AN] m−3 and 5 kg [TK] m−3 with coefficients of determination (R2) of 0.86 and 0.58 respectively, in agreement with previous linear models. At higher AN values (which means EC > 40 dS m−1) linearity cannot be maintained, which has important consequences for direct slurry EC measurements. ON and TP in slurries were closely related (p < 0.0001) to DM with R2 of 0.90 and 0.68 respectively.es_ES
dc.description.sponsorshipThis study was funded by the National Institute for Agricultural and Food Scientific Research and Technology of Spain (INIA), projects SC00-061, RTA04-114 and RTA10-126.es_ES
dc.language.isoenges_ES
dc.publisherElsevieres_ES
dc.rightsopenAccesses_ES
dc.subjectcompositional-variabilityes_ES
dc.subjectfertilizer-valuees_ES
dc.subjectnutrientses_ES
dc.subjectphysicochemical modelses_ES
dc.subjectpig slurryes_ES
dc.titleMeasurement and estimation of the fertiliser value of pig slurry by physicochemical models: Usefulness and constraintses_ES
dc.typeartículoes_ES
dc.identifier.doi10.1016/j.biosystemseng.2011.11.013-
dc.description.peerreviewedPeer reviewedes_ES
dc.relation.publisherversionhttp://dx.doi.org/10.1016/j.biosystemseng.2011.11.013es_ES
dc.identifier.e-issn1537-5129-
dc.type.coarhttp://purl.org/coar/resource_type/c_6501es_ES
item.grantfulltextopen-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.cerifentitytypePublications-
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item.languageiso639-1en-
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