Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/577483
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dc.contributor.authorOLIVEIRA NETO, W. dept_BR
dc.contributor.authorMUNIZ, A. S.pt_BR
dc.contributor.authorSILVA, M. A. G.pt_BR
dc.contributor.authorCASTRO, C. dept_BR
dc.contributor.authorBORKERT, C. M.pt_BR
dc.date.accessioned2014-01-30T22:21:28Z-
dc.date.available2014-01-30T22:21:28Z-
dc.date.created2009-12-08pt_BR
dc.date.issued2009pt_BR
dc.identifier.citationRevista Brasileira de Ciência do Solo, Viçosa, v. 33, n. 5, p. 1259-1267, set./out. 2009.pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/577483pt_BR
dc.descriptionThe deficiency or excess of micronutrients has been determined by analyses of soil and plant tissue. In Brazil, the lack of studies that would define and standardize extraction and determination methods, as well as lack of correlation and calibration studies, makes it difficult to establish limits of concentration classes for analysis interpretation and fertilizer recommendations for crops. A specific extractor for soil analysis is sometimes chosen due to the ease of use in the laboratory and not in view of its efficiency in determining a bioavailable nutrient. The objectives of this study were to: (a) evaluate B concentrations in the soil as related to the fertilizer rate, soil depth and extractor; (b) verify the nutrient movement in the soil profile; (c) evaluate efficiency of Hot Water, Mehlich-1 and Mehlich-3 as available B extractors, using sunflower as test plant. The experimental design consisted of complete randomized blocks with four replications and treatments of five B rates (0, 2, 4, 6, and 8 kg ha-1) applied to the soil surface and evaluated at six depths (0?0.05, 0.05?0.10, 0.10?0.15, 0.15?0.20, 0.20?0.30, and 0.30?0.40 m). Boron concentrations in the soil extracted by Hot Water, Mehlich-1 and Mehlich-3 extractors increased linearly in relation to B rates at all depths evaluated, indicatingB mobility in the profile. The extractors had different B extraction capacities, but were all efficient to evaluate bioavailability of the nutrient to sunflower. Mpt_BR
dc.language.isoporpt_BR
dc.relation.ispartofseries0100-0683pt_BR
dc.rightsopenAccesspt_BR
dc.subjectMicronutrientespt_BR
dc.titleBoron extraction and vertical mobility in Paraná State oxisol, Brazil.pt_BR
dc.typeArtigo de periódicopt_BR
dc.date.updated2014-01-30T22:21:28Zpt_BR
dc.subject.thesagroBoropt_BR
dc.subject.thesagroSolopt_BR
riaa.ainfo.id577483pt_BR
riaa.ainfo.lastupdate2014-01-30pt_BR
dc.contributor.institutionWALDEMAR DE OLIVEIRA NETO, CNPSo; ANTÔNIO SARAIVA MUNIZ, UEM; MARIA ANITA GONÇALVES DA SILVA, UEM; CESAR DE CASTRO, CNPSo; CLÓVIS MANUEL BORKERT, CNPSo.pt_BR
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