Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1061757
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dc.contributor.authorVIEIRA, R. F.pt_BR
dc.contributor.authorPAZIANOTTO, R. A. A.pt_BR
dc.date.accessioned2017-01-25T11:11:11Zpt_BR
dc.date.available2017-01-25T11:11:11Zpt_BR
dc.date.created2017-01-25pt_BR
dc.date.issued2016pt_BR
dc.identifier.citationSpringerPlus, Amsterdam, v. 5, n. 1, 16 p., 2016. Article 1844.pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1061757pt_BR
dc.descriptionBackground: One of the main concerns related to the increasing use of sewage sludge in the soil is the possible presence of excess nutrients, which could cause environmental problems and detrimental e?ects on the soil microorganisms, considered essential to soil nutrient cycling. Thus, the objective of this work was to evaluate the microbial biomass and activity and some chemical characteristics of one speci?c tropical soil, classi?ed as Dark Red Distroferric Latosol, of a loamy/clayey texture, in a long-term ?eld experiment using anaerobically digested household sludge amendment. The sludge doses applied were the recommended dose and 2, 4 and 8 times the recommended dose. The authors hypothesized that the frequent application of this compound to the soil, even when using the recommended dose, could a?ect the available phosphorus (Pav) and heavy metal contents of the soil, resulting in concentrations above the needs of the culture as well as negatively a?ecting the activity of the soil microorganisms. Results: The results demonstrated that successive applications of sludge, calculated considering the recommended dose of N for corn, did not increase the soil Pav contents in relation to the treatment in which the fertilizer was applied considering the nutrient needs of the culture, contrary to what happened with the highest sludge doses. The Cr, Ni and Cu contents increased with increase in sludge dose, but did not surpass the limits considered inadequate. There were no accentuated di?erences between the treatments with respect to microbial biomass C. Basal respiration and the FDA hydrolysis were considered to be the parameters that most di?erentiated the e?ect of increasing sludge doses on the microbial activity. Conclusion: The application of a sludge dose to a tropical soil, based on the recommended dose, did not a?ect the Pav or heavy metal contents of the soil even after years of application. Since there were no di?erences between the treatments with respect to the Cmic values, to the contrary of what happened with the other microbiological parameters evaluated, the possibility of changes in the composition of the microbial community with the higher sludge doses was considered.pt_BR
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectMetabolic quotientpt_BR
dc.titleMicrobial activities in soil cultivated with corn and amended with sewage sludge. Microbial activities in soil cultivated with corn and amended with sewage sludge.pt_BR
dc.typeArtigo de periódicopt_BR
dc.date.updated2017-03-03T11:11:11Zpt_BR
dc.subject.thesagroMicrobiologia do solopt_BR
dc.subject.thesagroAdubo de esgotopt_BR
dc.subject.thesagroLodo residualpt_BR
dc.subject.thesagroMilhopt_BR
dc.subject.thesagroPopulação microbianapt_BR
dc.subject.thesagroImpacto ambientalpt_BR
dc.subject.nalthesaurusSewage sludgept_BR
dc.subject.nalthesaurusMicrobial activitypt_BR
dc.subject.nalthesaurusCornpt_BR
dc.subject.nalthesaurusEnvironmental impactpt_BR
riaa.ainfo.id1061757pt_BR
riaa.ainfo.lastupdate2017-03-03pt_BR
dc.identifier.doihttp://dx.doi.org/10.1186/s40064-016-3502-9pt_BR
dc.contributor.institutionROSANA FARIA VIEIRA, CNPMA; RICARDO ANTONIO ALMEIDA PAZIANOTTO, CNPMA.pt_BR
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