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dc.contributor.authorSOUZA, D. M. dept_BR
dc.contributor.authorMORAIS, P. A. de O.pt_BR
dc.contributor.authorMATSUSHIGE, I.pt_BR
dc.contributor.authorROSA, L. A.pt_BR
dc.date.accessioned2016-09-15T11:11:11Zpt_BR
dc.date.available2016-09-15T11:11:11Zpt_BR
dc.date.created2016-09-15pt_BR
dc.date.issued2016pt_BR
dc.identifier.citationRevista Brasileira de Ciência do Solo, Viçosa, MG, v. 40, e0150150, 2016.pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1052941pt_BR
dc.descriptionSoil organic matter (SOM) is important to fertility, since it performs several functions such as cycling, water and nutrient retention and soil aggregation, in addition to being an energy requirement for biological activity. This study proposes new trends to the Embrapa, Walkley-Black, and Mebius methods that allowed the determination of SOM by spectrophotometry, increasing functionality. The mass of 500 mg was reduced to 200 mg, generating a mean of 60 % saving of reagents and a decrease of 91 % in the volume of residue generated for the three methods without compromising accuracy and precision. We were able to optimize conditions for the Mebius method and establish the digestion time of maximum recovery of SOM by factorial design and response surface. The methods were validated by the estimate of figures of merits. Between the methods investigated, the optimized Mebius method was best suited for determining SOM, showing near 100 % recovery.pt_BR
dc.language.isoengeng
dc.rightsopenAccesseng
dc.titleDevelopment of alternative methods for determining soil organic matter.pt_BR
dc.typeArtigo de periódicopt_BR
dc.date.updated2016-09-16T11:11:11Zpt_BR
dc.subject.thesagroSolopt_BR
dc.subject.thesagroMatéria orgânicapt_BR
dc.subject.thesagroAnálise químicapt_BR
dc.subject.thesagroEspectrometriapt_BR
riaa.ainfo.id1052941pt_BR
riaa.ainfo.lastupdate2016-09-16pt_BR
dc.identifier.doi10.1590/18069657rbcs20150150pt_BR
dc.contributor.institutionDIEGO MENDES DE SOUZA, CNPAF; PEDRO AUGUSTO DE OLIVEIRA MORAIS, UNIVERSIDADE FEDERAL DE GOIÁS; IVA MATSUSHIGE, CNPAF; LUISMAR ALVES ROSA, INSTITUTO FEDERAL DE GOIÁS.pt_BR
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