Oxidation of sulphur in soils

Freney, J. R.

doi:10.1007/bf00201914

Cited by 24 publications

(14 citation statements)

References 51 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In general, the rate of S 0 oxidation is minimal in temperatures below 10 °C and above 40 °C (Freney, 1967). Nor & Tabatabai (1977) observed an increase in the oxidation rate with an increase in incubation temperature of soils in Iowa.…”

Section: Variables Affecting the Oxidation Of S 0 In Soilmentioning

confidence: 97%

“…The fraction of organic S directly bound to C consists of the S-containing amino acids, thiols, disulfides, sulfones, and sulfonic acids. The third fraction of organic S is probably composed of sulfonates, sulfoxides, and heterocyclic S (Freney, 1967;Tabatabai, 1984;Kertesz et al, 2007;Eriksen, 2008).…”

Section: Organic Sulfur In Soilmentioning

confidence: 99%

“…However, the degree of acidification varies depending on the amount of applied S 0 and the soil buffering capacity (Yang et al, 2008). Several studies have shown an increase in S 0 oxidation in alkaline soils or in response to the addition of CaCO 3 (Freney, 1967;Adamczyk-Winiarska et al, 1975;Nor & Tabatabai, 1977;Czaban & Kobus, 2000;Yang et al, 2008). According to Adamczyk-Winiarska et al (1975), calcium carbonate could improve the conditions for the development of S-oxidizing microorganisms in the soil.…”

Section: Variables Affecting the Oxidation Of S 0 In Soilmentioning

confidence: 99%

See 2 more Smart Citations

Sulfur in agriculture

Lucheta¹,

Lambais

2012

Rev. Bras. Ciênc. Solo

View full text Add to dashboard Cite

SUMMARYSulfur (S) deficiency in soils is becoming increasingly common in many areas of the world as a result of agronomic practices, high biomass exportation and reduced S emissions to the atmosphere. In this review, the incidence and commercial exploitation of S pools in nature are discussed, as well as the importance of S for plants and the organic and inorganic S forms in soil and their transformations, especially the process of microbiological oxidation of elemental sulfur (S 0 ) as an alternative to the replenishment of S levels in the soil. The diversity of S 0 -oxidizing microorganisms in soils, in particular the genus Thiobacillus, and the biochemical mechanisms of S 0 oxidation in bacteria were also addressed. Finally, the main methods to measure the S 0 oxidation rate in soils and the variables that influence this process were revised.Index terms: fertilization, agriculture, microbial diversity, soil fertility. RESUMO: ENXOFRE NA AGRICULTURA A deficiência de enxofre (S) nos solos vem se tornando cada vez mais comum em várias áreas do mundo em razão de práticas agronômicas, alta exportação de biomassa e redução das emissões atmosféricas. Nesta revisão são abordados a incidência, a exploração comercial e estoques de S na natureza, a importância do S para as plantas, as formas orgânicas e inorgânicas no solo e suas transformações, assim como, principalmente, o processo de oxidação microbiológica do enxofre elementar (S 0 ) como alternativa para a reposição dos níveis de S do solo. Também é abordada a diversidade de microrganismos oxidantes de S

show abstract

Section: Variables Affecting the Oxidation Of S 0 In Soilmentioning

confidence: 97%

Section: Organic Sulfur In Soilmentioning

confidence: 99%

Section: Variables Affecting the Oxidation Of S 0 In Soilmentioning

confidence: 99%

See 1 more Smart Citation

Sulfur in agriculture

Lucheta¹,

Lambais

2012

Rev. Bras. Ciênc. Solo

View full text Add to dashboard Cite

show abstract

“…Os métodos químicos tradicionais permitem a separação de três frações amplas de S orgânico no solo, sendo elas: S orgânico não ligado diretamente ao carbono (C) e redutível a H 2 S pelo ácido iodídrico (HI); S orgânico ligado diretamente ao C (C-S) reduzido a H 2 S pelo composto Raney níquel, e S não identificado, residual ou inerte. A primeira fração é composta principalmente por ésteres de sulfatos (C-O-S) como: fenóis sulfatados, polissacarídeos sulfatados e lipídios sulfatados, entre outras, a segunda fração é constituída pelos aminoácidos contendo S (metionina, cistina e cisteína), mercaptanas, dissulfetos, sulfonas e ácido sulfônico, e a terceira fração geralmente é negligenciada (FRENEY, 1967;TABATABAI, 1984;ERIKSEN, 2008).…”

Section: Enxofre Orgânico No Solounclassified

“…Newton Stanford, da Universidade Federal Rural de Pernambuco, gerando várias publicações e recomendações para diversas culturas como a caupí, cana-de-açúcar, videiras e meloeiros (STAMFORD et al, 2003;STAMFORD et al, 2007;STAMFORD et al, 2008;MOURA et al, 2007 (FRENEY, 1967). Para que haja uma grande eficiência na utilização do S 0 como fertilizante é necessária a aplicação de partículas de tamanho entre 80-1000 mesh ou menores (WAINWRIGHT, 1984).…”

Section: Processos De Mineralização E Imobilização Do S No Solounclassified

Oxidação microbiológica do enxofre elementar no solo

Lucheta¹

View full text Add to dashboard Cite

Centro APTA Citros "Sylvio Moreira", pela utilização da plataforma de sequenciamento de DNA.Aos Professores Doutores: Elke J. B. N. Cardoso, Marli de Fátima Fiore e Carlos Eduardo P. Cerri, pela participação no exame de qualificação e sugestões bastante valiosas.À secretária do PPG em Microbiologia Agrícola Giovana Maria de Oliveira, por todo o apoio e à bibliotecária Silvia Maria Zinsly pelas correções da tese.Aos meus avós e padrinhos Waldemar e Aparecida, meus pais José Roberto e Virgínia, minha irmã Isabela, por todo o seu amor e apoio incondicionais e imprescindíveis para a concretização deste sonho. Muito obrigado por poder contar com vocês e fazer parte desta família maravilhosa.À minha estrela Nijima, minha namorada, tão importante na minha vida e nessa reta final, agradeço pelo seu amor, compreensão e incentivo, e, aos seus pais Mara e Mauro pelo acolhimento. ABSTRACT Microbiological Elemental Sulfur Oxidation in SoilDepletion of sulfur levels in soil has been observed as a result of agricultural practices and biomass harvesting. Elemental sulfur (S 0 ) may be an interesting fertilizer, however it must be oxidized to sulfate in order to be taken up by plants. Biological oxidation of S 0 is commonly associated to Acidithiobacillus thiooxidans, although many studies failed to detect them in soils. Recent efforts have shown a great diversity of microorganisms able to oxidize S 0 , besides A. thiooxidans. Nevertheless, no information is available for Brazilian soils. The aims of this work were to determine the S 0 oxidation rates of three Brazilian soils, the bacterial and archaeal communities' diversity associated to S 0 oxidation, as well as, to isolate sulfur oxidizing bacteria (SOB) and evaluate its potential as a biofertilizer. Soils sampled in Anhembi, SP (ANB), Brasília, DF (BRA) and Rondonópolis, MT (RDP) were enriched with 10 g of S 0 kg -1 (+S 0 ) or not (-S 0 ) and incubated in microcosms for 0, 6, 22, 38, 54, 67, 86 and 102 days under 28 o C. Oxidation rates of S 0 were low, ranging to 2,8 and 3,2 ug S cm -2 day -2 in the sand soils (RDP and BRA) and 1,3 ug S cm -2 day -2 in the clay one (BRA) after 102 days incubation. Soil SO 4 2-content was increased and pH decreased as result of S 0 oxidation mainly in the sand soils. Bacterial community structure and diversity were affected by S 0 amendment and time of incubation, represented by changes in the DGGE profile and phylum distribution. Were obtained 811 bacterial 16S rRNA sequences, clustered in 518 Operational Taxonomic Units (OTUs). The predominant phyla in the soils were Acidobacteria, Actinobacteria, Firmicutes and Proteobacteria. Were obtained 463 archaeal 16S rRNA sequences clustered into 39 OTUs. More than 84% of the OTUs were assembled to unclassified Archaea whereas 15% were classified as Euryarchaeota. Archaea diversity was not mostly affected by S 0 . Fifty SOB were isolated and affiliated to Proteobacteria (68%), Actinobacteria (18%) and Firmicutes (14%) after 16S rRNA sequencing. The assigned genera were Aurantimonas, Acinetobac...

show abstract

Anions in pre‐ and post‐blast consumer fireworks by capillary electrophoresis

et al. 2014

View full text Add to dashboard Cite

Consumer fireworks are a heterogeneous group of pyrotechnic items widely used by citizens around the world. There are a wide number of forensic cases related to consumer fireworks that require knowing their chemical composition and variety of designs to conduct accurate and comprehensive analyses. In this research paper, a selection of six consumer firework types (firecracker, rocket, pyrotechnic fountain, pyrotechnic battery, sparkler, and smoke bomb) is physically described and their anionic compositions are determined. Preblast (fuses and charges) samples and postblast residues of the different consumer fireworks were analyzed by CE in order to determine their anionic composition. Different types of chemical compositions in fuses and pyrotechnic charges were determined, although they were not related to any type of item. Additionally, several discrepancies were found between the analytical results and the declared item compositions. Regarding postblast residues, a huge variety of anions were identified and attributed to some unconsumed starting materials and different chemical reactions occurring during combustion.

show abstract

Oxidation of sulphur in soils

Cited by 24 publications

References 51 publications

Sulfur in agriculture

Sulfur in agriculture

Oxidação microbiológica do enxofre elementar no solo

Anions in pre‐ and post‐blast consumer fireworks by capillary electrophoresis

Contact Info

Product

Resources

About