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dc.contributor.authorTiecher, Talespt_BR
dc.contributor.authorBrunetto, Gustavopt_BR
dc.contributor.authorRheinheimer, Danilo dos Santospt_BR
dc.contributor.authorGatiboni, Luciano Colpopt_BR
dc.contributor.authorComin, Jucinei Josépt_BR
dc.contributor.authorSchmitt, Djalma Eugêniopt_BR
dc.contributor.authorTiecher, Tadeu Luispt_BR
dc.contributor.authorAmbrosini, Vítor Gabrielpt_BR
dc.date.accessioned2022-12-14T04:55:13Zpt_BR
dc.date.issued2021pt_BR
dc.identifier.issn0103-9016pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/252689pt_BR
dc.description.abstractThis study evaluated P pools after nine years of successive application of either pig slurry (PS) or deep pig litter (DL) in a no-till Ultisol from southern Brazil. The experiment was established in Dec 2002 with the treatments control, application of 90 and 180 kg N ha–1 N as PS and as DL. In Mar 2010, soil samples were taken at six layers up to 30 cm deep. Total organic and inorganic P were assessed by the ignition method, and P compounds classes were evaluated by 31P-NMR spectroscopy. Total soil P increased proportionally with the P amount applied via DL and PS. Only DL application increased soil organic P, mainly at the highest dose and in the uppermost soil layers. The application of high doses of manure to these soils under no- till to meet crop N demands significantly increased P accumulation at the soil surface, especially with DL. This, in turn, increases the risk of contamination of water bodies due to P transfer from soil to rivers via runoff. The ignition method overestimates organic P compared to P-NMR. The highest proportion of organic P estimated by the ignition and P-NMR methods, at surface layers in the control suggests that inorganic P is added to the plots treated, increasing inorganic P and decreasing organic P. Moreover, with no P additions to the control, inorganic soil P is removed by plants, causing an apparent increase in the organic P proportion.en
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofScientia agricola. Piracicaba. Vol. 78, n. 3 (2021), [art.]e20190157, 8 p.pt_BR
dc.rightsOpen Accessen
dc.subjectFósforopt_BR
dc.subjectP-NMRen
dc.subjectOrganic Pen
dc.subjectArgissolospt_BR
dc.subjectEstercopt_BR
dc.subjectManureen
dc.subjectOrthophosphateen
dc.subjectPhpt_BR
dc.titlePhosphorus accumulation in a southern Brazilian Ultisol amended with pig manure for nine yearspt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb001127735pt_BR
dc.type.originNacionalpt_BR


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