Potential slow release fertilizers based on K2MgSiO4 obtained from serpentinite

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dc.creatorFabiane Carvalho Ballotin
dc.creatorWedisson Oliveira Santos
dc.creatorEdson Marcio Mattiello
dc.creatorOttavio Raul Domenico Riberti Carmignano
dc.creatorAna Paula de Carvalho Teixeira
dc.creatorRochel Montero Lago
dc.date.accessioned2023-07-25T17:08:46Z
dc.date.accessioned2025-09-09T00:45:40Z
dc.date.available2023-07-25T17:08:46Z
dc.date.issued2019
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico
dc.description.sponsorshipFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Gerais
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
dc.description.sponsorshipINCT – Instituto nacional de ciência e tecnologia (Antigo Instituto do Milênio)
dc.format.mimetypepdf
dc.identifier.doihttp://dx.doi.org/10.21577/0103-5053.20190229
dc.identifier.issn0103-5053
dc.identifier.urihttps://hdl.handle.net/1843/56940
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofJournal of the Brazilian Chemical Society
dc.rightsAcesso Aberto
dc.subjectFertilizantes potássicos
dc.subjectPotássio
dc.subjectRaios X - Difração
dc.subject.otherFertilizer
dc.subject.otherPotassium
dc.subject.otherSerpentinite
dc.subject.otherSlow release
dc.subject.otherStirred-flow
dc.titlePotential slow release fertilizers based on K2MgSiO4 obtained from serpentinite
dc.typeArtigo de periódico
local.citation.epage661
local.citation.issue4
local.citation.spage653
local.citation.volume31
local.description.resumoIn this work, a potassium magnesium silicate mineral based on phase K2MgSiO4 was prepared from serpentinite rock and studied as a potential K and Mg slow-release fertilizer. The material was prepared by impregnation of serpentinite/KOH and calcination at 700 °C to produce K2MgSiO4 phase, olivine and forsterite. The release patterns of K and Mg in the stirred-flow trial and leaching through the soil columns showed that K2MgSiO4-based materials released K on lower rates than KCl and MgSO4.7H2O, however, there was no evidence of Mg release. The extraction with 1 mol L-1NH4OAc showed a considerable content of Mg and K for K2MgSiO4-based materials, due to exchange of NH4+ and Mg2+. X-ray diffraction (XRD) analysis of materials impregnated with K and calcined showed peaks relative to K2MgSiO4. After leaching, the peaks intensity diminished, supporting that part of K leached. Therefore, the samples showed great potential as slow-release K-fertilizers when compared with KCl source.
local.identifier.orcidhttps://orcid.org/0000-0003-2872-6690
local.identifier.orcidhttps://orcid.org/0000-0001-7872-5659
local.identifier.orcidhttps://orcid.org/0000-0001-6901-0133
local.identifier.orcidhttps://orcid.org/0000-0002-9877-9192
local.identifier.orcidhttps://orcid.org/0000-0002-4985-7502
local.identifier.orcidhttps://orcid.org/0000-0002-7145-6342
local.publisher.countryBrasil
local.publisher.departmentICX - DEPARTAMENTO DE QUÍMICA
local.publisher.initialsUFMG
local.url.externahttps://jbcs.sbq.org.br/default.asp?ed=297

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