Soil Charges
Mostrando 1-8 de 8 artigos, teses e dissertações.
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1. Genesis of sandstone-derived soils in the Cerrado of the Piauí State, Brazil
Resumo Objetivou-se com este trabalho caracterizar atributos morfológicos, físicos e químicos de solos formados a partir de arenitos no Cerrado Piauiense, na tentativa de encontrar padrões evolutivos. O estudo foi realizado em cinco perfis de solos representativos identificados como P1-RY (Neossolo Flúvico Psamítico típico - Aquents), P2-PA (Argissolo
Rev. Ambient. Água. Publicado em: 15/07/2019
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2. Multivariate Analysis and Machine Learning in Properties of Ultisols (Argissolos) of Brazilian Amazon
ABSTRACT: Ultisols are the most common soil order in the Brazilian Amazon. The Legal Amazon (LA) has an area of 5 × 106 km2, with few accessible areas, which restricts studies of soils at a detailed level. The pedological properties can be estimated more efficiently using statistical procedures and machine learning techniques, tools which are capable of rec
Rev. Bras. Ciênc. Solo. Publicado em: 06/12/2018
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3. Cargas superficiais da fração argila de solos influenciadas pela vinhaça e fósforo
Effects of vinasse, P sorption and the interaction vinasse-phosphorus on zeta potential and point of zero charge (PZC) as well as the effects of vinasse on P sorption on clay-fraction samples from two soils were evaluated. The vinasse and P sorption influenced the surface charge of clay fraction of both soils. Sorption of P increased negative charges from so
Química Nova. Publicado em: 2011
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4. Application of vinasse in soils: effect on soil charges and particle dispersion / AplicaÃÃo de vinhaÃa em solos: efeito no balanÃo de cargas e dispersÃo de partÃculas
The vinasse is the main byproduct of the ethanol and sugarcane brand production; these activities are in large expansion in Brazil. For a long time the vinasse was launched into water courses, generating negative environmental impacts. One of the alternatives for producers to get rid of vinasse is its addition in soils as fertilizer. Although the effects of
Publicado em: 2009
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5. Fundamentação da cobrança pelo uso da água na agricultura irrigada, na microbacia do Ribeirão dos Marins, Piracicaba/SP / Fundamentation of water use charges in agricultural irrigation, in the smallcatchment basin of River Marins, Piracicaba/SP
The current crisis in water supply worldwide and the associated water use problems are one of the great concerns for the humanity, leading to the necessity to find solutions to prevent harmful consequences in the environment. Charges for water use in agricultural irrigation, supported by principles of environmental law as "user-payer" and "pollut
Publicado em: 2007
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6. IRON DEFICIENCY IN GRÁPIA: EFFECTS OF THE PHOSPHORUS AND POTASSIUM FERTILIZATION / DEFICIÊNCIA DE FERRO EM GRÁPIA: EFEITO DA ADUBAÇÃO FOSFATADA E POTÁSSICA
Previous studies done with grápia (Apuleia leiocarpa (Vog.) Macbride) showed that the increase in the P fertilization induced visual symptoms of Fe-deficiency in the younger leaves. At cellular level, potassium may contribute to balance charges between the cytoplasm and apoplasm, hence allowing the uptake of iron by plant cells. The aim of this study was to
Publicado em: 2005
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7. Relationship between Cell Surface Properties and Transport of Bacteria through Soil
A study was conducted to relate the properties of Enterobacter, Pseudomonas, Bacillus, Achromobacter, Flavobacterium, and Arthrobacter strains to their transport with water moving through soil. The bacteria differed markedly in their extent of transport; their hydrophobicity, as measured by adherence to n-octane and by hydrophobic-interaction chromatography;
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8. Bacterial hydrophobicity, an overall parameter for the measurement of adhesion potential to soil particles.
The adhesion of Salmonella typhimurium to the mineral particles quartz, albite, feldspar, and magnetite was shown to correlate with the hydrophobicity of the cell surface as measured by hydrophobic interaction chromatography. The same effects were also seen for seven other selected test strains, including Streptococcus faecalis, Streptococcus faecium, Escher