Variations in the chemical composition of the solution extracted from a Latosol under fertigation with vinasse

Francisco, João Paulo; Folegatti, Marcos Vinícius; Silva, Leonardo Batista Duarte; Silva, Jonathas Batista Gonçalves; Diotto, Adriano Valentim

doi:10.5935/1806-6690.20160027

Cited by 8 publications

(5 citation statements)

References 20 publications

(19 reference statements)

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“…As a consequence, these anions are not adsorbed to the solid phase by any mechanism other than the electrostatic. The low adsorption of these chemical species by the inorganic solids of the soil causes them to be present in greater quantity and in field conditions, they can be leached (Francisco et al, 2016). For Zambrosi et al (2008) andDe Conti et al (2017), the increase of sulfate ions in the solution of the studied soils resulted from the application of limestone and swine manure, respectively.…”

Section: Sulphate Chloride and Nitratementioning

confidence: 97%

“…There characteristics are undesirable for the good development of the main agricultural crops (Miguel et al, 2010). In this context, it is important to know the chemical composition of soil solutions through chemical speciation; this information contributes to the understanding of physical and chemical changes to aid in the monitoring of nutrient availability and for management of the environment, soil fertility, and plant nutrition, because it is in the soil that the main chemical reactions occur and nutrients are dissolved in the solution and absorbed by the plants (Souza et al, 2013;Francisco et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

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Composition, chemical speciation and activity of ions in the solution of Brazilian acid soils

Cunha

Almeida

Ernani

et al. 2018

Agraria

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The knowledge of the chemical composition of the soil solution through chemical speciation is important for the monitoring of nutrient availability, soil fertility management and plant nutrition. The objective of this study was to evaluate the chemical composition and activity of Al, cations and anions by chemical speciation in solution of some Brazilian acid soils (AC, PE, RS and SC) submitted to liming and cultivated with soybean and maize plants. In addition, to identify the chemical elements responsible for the reduction of Al activity in the solution and its toxicity to plants. The predominant aluminum, calcium, magnesium, potassium, sulfate, chloride and nitrate species in all soils were: Ca 2+ and Mg 2+ , K + , SO 4 2-, Cland NO 3 in all soils. In the treatments without limestone in the soils AC9, RS and CB predominated the species of P H 2 PO 4 and in the soils PE and BR was the AlHPO 4 + . However, with liming the P form that predominated in all soils was H 2 PO 4 and, to a lesser extent, HPO 4 2-. The activity of the Ca 2+ and Mg 2+ ions was the main responsible for the neutralization of the toxic effects of Al 3+ in the evaluated plants.Composição, especiação química e atividade de íons na solução de solos ácidos brasileiros RESUMO: O conhecimento da composição química da solução do solo, por meio da especiação química, é importante para o acompanhamento da disponibilidade de nutrientes para o manejo da fertilidade do solo e da nutrição de plantas. O estudo objetivou avaliar a composição química e a atividade do Al, dos cátions e dos ânions, por meio da especiação química, na solução de alguns solos ácidos brasileiros (AC, PE, RS e SC) submetidos à calagem e cultivados com plantas de soja e milho. Além disso, identificar os elementos químicos responsáveis pela redução da atividade do Al na solução e sua toxidez às plantas. As espécies químicas de alumínio, cálcio, magnésio, potássio, sulfato, cloreto e nitrato predominantes em maiores proporções em todos os solos foram: Al 3+ , Ca 2+ e Mg 2+ , K + , SO 4 2-, Cle NO 3 -. Nos tratamentos sem calcário nos solos AC9, RS e CB predominou a espécie de P H 2 PO 4 e nos solos PE e BR foi a AlHPO 4 + . Porém, com a calagem a forma de P que predominou em todos os solos foi a H 2 PO 4 e, em menor proporção, a HPO 4 2-. A atividade dos íons Ca 2+ e Mg 2+ foi a principal responsável pela neutralização dos efeitos tóxicos do Al 3+ nas plantas avaliadas. Palavras-chave: ânions; calcário dolomítico; cátions; complexos; plantas Composition, chemical speciation and activity of ions in the solution of Brazilian acid soils Rev. Bras. Cienc. Agrar., Recife, v.13, n.3, e5542, 2018 2/10

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Section: Sulphate Chloride and Nitratementioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Composition, chemical speciation and activity of ions in the solution of Brazilian acid soils

Cunha

Almeida

Ernani

et al. 2018

Agraria

View full text Add to dashboard Cite

show abstract

“…This provides a great versatility for this microorganism, unlike S. cerevisiae and Y. lipolitica which cannot consume nitrate and nitrite as a nitrogen sources [34, 35]. Nitrate is present in great amounts in some wastewaters such as vinasse [51].…”

Section: Resultsmentioning

confidence: 99%

“…5Prediction of Lysine biosynthesis pathways according to the metabolic annotation of P. irregulare CBS 494.86. Detailed legend: Diaminopimelate (DAP) possible Lysine biosynthesis pathways with EC numbers provided in the metabolic annotation of P. irregulare and Alphaaminoadipate (AAA) pathway available for S. cerevisiae [50, 51]. In the DAP pathway enzymes 15 and 16 was not confirmed by the current annotation…”

Section: Resultsmentioning

confidence: 99%

Genome-wide sequencing and metabolic annotation of Pythium irregulare CBS 494.86: understanding Eicosapentaenoic acid production

et al. 2019

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Background Pythium irregulare is an oleaginous Oomycete able to accumulate large amounts of lipids, including Eicosapentaenoic acid (EPA). EPA is an important and expensive dietary supplement with a promising and very competitive market, which is dependent on fish-oil extraction. This has prompted several research groups to study biotechnological routes to obtain specific fatty acids rather than a mixture of various lipids. Moreover, microorganisms can use low cost carbon sources for lipid production, thus reducing production costs. Previous studies have highlighted the production of EPA by P. irregulare , exploiting diverse low cost carbon sources that are produced in large amounts, such as vinasse, glycerol, and food wastewater. However, there is still a lack of knowledge about its biosynthetic pathways, because no functional annotation of any Pythium sp. exists yet. The goal of this work was to identify key genes and pathways related to EPA biosynthesis, in P. irregulare CBS 494.86, by sequencing and performing an unprecedented annotation of its genome, considering the possibility of using wastewater as a carbon source. Results Genome sequencing provided 17,727 candidate genes, with 3809 of them associated with enzyme code and 945 with membrane transporter proteins. The functional annotation was compared with curated information of oleaginous organisms, understanding amino acids and fatty acids production, and consumption of carbon and nitrogen sources, present in the wastewater. The main features include the presence of genes related to the consumption of several sugars and candidate genes of unsaturated fatty acids production. Conclusions The whole metabolic genome presented, which is an unprecedented reconstruction of P. irregulare CBS 494.86, shows its potential to produce value-added products, in special EPA, for food and pharmaceutical industries, moreover it infers metabolic capabilities of the microorganism by incorporating information obtained from literature and genomic data, supplying information of great importance to future work. Electronic supplementary material The online version of this article (10.1186/s12896-019-0529-3) contains supplementary material, which is available to authorized users.

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“…Porém esse fato pode está ligado ao tempo de aplicação do resíduo orgânico na cultura da cana-de-açúcar ao longo dos anos. Resultado que difere do encontrado porFrancisco et al (2016), os quais verificaram que a aplicação de vinhaça aumentou os níveis de matéria orgânica no solo, resultando em um aumento na carga negativa da camada superficial e nos valores mais elevados para K encontrados nesta camada.Para o fator ambiente, os teores de alumínio e acidez potencial (H + Al) também apresentaram comportamento similar. área fertirrigada apresentou maior teor de ferro em comparação com as demais que não sofreram alterações significativas (Tabela 3), podendo a vinhaça ter contribuído com o aumento desse micronutriente.…”

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Atributos Físico-Hídricos E Químicos Do Solo Sob Aplicação De Vinhaça Por Anos Consecutivos

Mundim¹,

Bonomo²,

Pires³

et al. 2019

EnergAgric

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Objetivou-se com este trabalho foi avaliar os atributos físico-hídricos e químicos de um Argissolo amarelo distrófico, fertirrigado com vinhaça por consecutivos anos. O experimento foi em duas áreas com cultivo de cana-de-açúcar localizadas no município de Conceição da Barra, ES. O delineamento experimental foi o inteiramente casualisado em um esquema fatorial 4 (áreas) x 4 (profundidade) com quatro repetições, sendo as áreas: fertirrigada, não fertirrigada, eucalipto e mata nativa, nas profundidades 0,00-0,20; 0,20-0,40; 0,40-0,60 e 0,60-0,80 m. Foram avaliados os atributos físico-hídricas e química do solo, através de amostras deformadas e indeformadas, coletadas nas áreas e profundidades. A aplicação de vinhaça não provocou limitação de natureza química no solo, contudo reduziu a condutividade hidráulica do solo saturado, porém não interferiu na densidade do solo. Promoveu a redução nos teores de alumínio e acidez potencial (H + Al) e não modificou o pH e matéria orgânica do solo. A vinhaça aumentou a concentração de potássio e ferro Fe no solo. A aplicação de vinhaça modificou a umidade na capacidade de campo, reduzindo os teores de água disponível e prontamente disponível, sendo menores nas áreas fertirrigadas com vinhaça.

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Variations in the chemical composition of the solution extracted from a Latosol under fertigation with vinasse

Cited by 8 publications

References 20 publications

Composition, chemical speciation and activity of ions in the solution of Brazilian acid soils

Composition, chemical speciation and activity of ions in the solution of Brazilian acid soils

Genome-wide sequencing and metabolic annotation of Pythium irregulare CBS 494.86: understanding Eicosapentaenoic acid production

Atributos Físico-Hídricos E Químicos Do Solo Sob Aplicação De Vinhaça Por Anos Consecutivos

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