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dc.contributor.authorVieira, Renan Costa Beberpt_BR
dc.contributor.authorFontoura, Sandra Mara Vieirapt_BR
dc.contributor.authorBayer, Cimeliopt_BR
dc.contributor.authorErnani, Paulo Robertopt_BR
dc.contributor.authorAnghinoni, Ibanorpt_BR
dc.contributor.authorMoraes, Renato Medeiros dept_BR
dc.date.accessioned2018-12-07T02:50:49Zpt_BR
dc.date.issued2016pt_BR
dc.identifier.issn0100-0683pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/186051pt_BR
dc.description.abstractIn no-tillage (NT) systems, there is no plowed layer since the soil is not tilled. Thus, the soil layer for fertility evaluation can be defined as the one in which the fertility indices are affected by the surface application of lime and fertilizers and soil properties have the closest relationship with crop yields. The objective of this study was to determine the most appropriate soil layer under long-term NT for sampling for fertility evaluation in the South-Central region of Paraná, Brazil. A total of 99 field experiments of crop rotations were performed, including soybean, corn, barley, wheat, and white oat, all on Oxisols (Hapludox). Despite the surface application, lime and fertilizers increased base saturation (V) and available K to a depth of 0.20 m. The relationship with crop yields was high for V and low for available K for both soil layers (0.00-0.10 and 0.00-0.20 m); for P, however, the relationships with soybean and corn yields were strongest in the 0.00-0.20 m layer. Thus, considering the soil layer fertilized by the surface application of lime and potassium fertilizers and the highest relationship of soil P contents with the yield of the main crops of the crop rotation, the 0.00-0.20 m layer is the most appropriate for soil fertility evaluation under long-term no-tillage systems.en
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofRevista brasileira de ciencia do solo. Viçosa. Vol. 40 (out. 2016), [art.] e0150143, 11 p.pt_BR
dc.rightsOpen Accessen
dc.subjectDiagnostic layeren
dc.subjectFertilidade do solopt_BR
dc.subjectLimingen
dc.subjectAmostragempt_BR
dc.subjectFertilizationen
dc.subjectPlantio diretopt_BR
dc.subjectCalagempt_BR
dc.subjectSoil samplingen
dc.subjectAdubaçãopt_BR
dc.titleSampling layer for soil fertility evaluation in long-term no-tillage systemspt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb001079543pt_BR
dc.type.originNacionalpt_BR


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