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dc.contributor.authorMarchiori, M.
dc.contributor.authorMelo, W. J.
dc.identifier.citationCommunications In Soil Science and Plant Analysis. New York: Marcel Dekker Inc., v. 32, n. 19-20, p. 3141-3151, 2001.
dc.description.abstractThis paper reports a study regarding the distribution of lead in the organic matter fractions of a loamy oxisol treated with stable manure, and its effect on the soil microbial biomass. The experimental design was a completely randomized factorial with three replicates. Treatments were four lead (Pb) rates (0, 200, 400, and 600 mg kg(-1) soil), two levels of manure (0 and 30 Mg ha(-1)) and two sampling times (30 and 60 days after lead application). Total and soil lead soluble in Mehlich 1 extractant, and Ph in the different fractions of the organic matter (fulvic acid, humic acid, and residual) were evaluated along with the soil microbial biomass. Data showed that lead, applied as PbCl2, was concentrated in the residual fraction. The application of manure at the rate of 30 Mg ha(-1) did not affect lead distribution in the fractions until 60 days after incorporation. Lead extracted by Mehlich 1 increased as function of the quantity applied. Manure stimulated the growth of the soil microbial biomass which was reduced by the 200 mg kg(-1) doses of lead, with manure application, increasing, however, with larger rates. Mehlich 1 extracted only part of the lead present in the residual fraction.en
dc.publisherMarcel Dekker Inc
dc.relation.ispartofCommunications in Soil Science and Plant Analysis
dc.sourceWeb of Science
dc.subjectheavy metalpt
dc.subjectorganic matterpt
dc.subjectmicrobial biomasspt
dc.titleLead distribution in organic matter of loamy oxisol treated with manure and its effect on microbial biomassen
dcterms.rightsHolderMarcel Dekker Inc
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.description.affiliationUNESP, FCAV, Dept Technol, BR-14870000 Jaboticabal, SP, Brazil
dc.description.affiliationUnespUNESP, FCAV, Dept Technol, BR-14870000 Jaboticabal, SP, Brazil
dc.rights.accessRightsAcesso restrito
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências Agrárias e Veterinárias, Jaboticabalpt[2]
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