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dc.contributor.authorYagüe Carrasco, María Rosa
dc.contributor.authorBosch Serra, Àngela D.
dc.contributor.authorAntúnez Pujol, Montserrat
dc.contributor.authorBoixadera Llobet, Jaume
dc.date.accessioned2014-07-24T09:31:08Z
dc.date.available2014-07-24T09:31:08Z
dc.date.issued2010
dc.identifier.issn0048-9697
dc.identifier.urihttp://hdl.handle.net/10459.1/47435
dc.description.abstractApplying pig slurry to the land as fertilizer at appropriate agronomic rates is important to close nutrient cycles and optimize the value of organic matter. However a long-term discussion has taken place about its effects on soil quality. In the north-east of Spain, eight fertilization strategies were evaluated on the soil quality parameters' aggregate stability, soil organic matter (SOM) physical fractions and soil microbial biomass (SMB). Six strategies used different pig slurries (PS) which provided organic matter from 1.7 to 2.6 t ha− 1 yr− 1, the rest (mineral N fertilization and a control) did not. Pig slurries were applied at sowing and/or at cereal tillering, as sidedressing. Field experiments were maintained for an 8-year period, in a silty loam soil devoted to a rainfed winter cereal. Soil samples were taken once, before the last sidedressing in 2011. Aggregate stability was quantified using the standard water-stable aggregate method but including a modification which meant that pre-wetting was avoided (WSAMOD). When using the WSAMOD method, we found a tendency for the percentage of water-stable aggregates to increase due to PS application (differences of up to 74% in the increment) and it was more marked the nearer they were measured to the application time (3 months vs. 12 months). The strategies which include PS show a positive effect on the SOM amount, mainly in the 0.05–0.2 mm light fraction, which increased by up to 34% with every 10 t ha− 1 organic C applied, and on SMB (up to 53% increment). There is a positive and significant linear relationship (p < 0.05, R2 = 0.75) between the SOM light fraction (%) and the water-stable aggregates soil content (%, WSAMOD). Thus, the introduction of PS in fertilization strategies improves soil quality parameters. However, the soil quality benefits need to be balanced with any other potential environmental impact.ca_ES
dc.language.isoengca_ES
dc.publisherElsevierca_ES
dc.relation.isformatofVersió postprint del document publicat a https://doi.org/10.1016/j.scitotenv.2012.08.063ca_ES
dc.relation.ispartofScience of The Total Environment, 2012, vol.438, p.218-224ca_ES
dc.rights(c) Elsevier, 2012ca_ES
dc.subjectBiological soil fertilityca_ES
dc.subjectField studiesca_ES
dc.subjectPhysical soil fertilityca_ES
dc.subjectDryland areasca_ES
dc.subjectSoil organic carbonca_ES
dc.subjectSoil structureca_ES
dc.subject.otherPurinsca_ES
dc.subject.otherAdobs orgànics -- Sòls -- Qualitatca_ES
dc.titlePig slurry and mineral fertilization strategies' effects on soil quality: Macroaggregate stability and organic matter fractionsca_ES
dc.typearticleca_ES
dc.identifier.idgrec018149
dc.type.versionacceptedVersionca_ES
dc.rights.accessRightsinfo:eu-repo/semantics/openAccessca_ES
dc.identifier.doihttps://doi.org/10.1016/j.scitotenv.2012.08.063


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