Humic substances
Fractions of organic matter and redox properties of humic substances in sediments from deep oceans.
... OF HUMIC SUBSTANCES IN SEDIMENTS FROM DEEP ...the humic substances, determined by potentiometric titrations, have been used to evaluate organic carbon stability in soil and ...of humic ...
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Humic substances isolated from residues of sugar cane industry as root growth promoter
... promoting substances are widely used in modern ...are humic substances isolated from different ...promoting substances. Humic acids (HA) from filter cake were characterized, and their ...
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CHEMICAL AND STRUCTURAL CHARACTERIZATION OF SOIL HUMIC SUBSTANCES UNDER AGROFORESTRY AND CONVENTIONAL SYSTEMS
... to humic substances, the ability of the soil to develop negative charges correlates strongly with FA and HA fractions (Mendonça et ...the humic fractions in the SILV treatment could be related to the ...
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Humic substances in soil cultivated with cover crops rotated with maize and soybean
... and humic substances were evaluated in a eutroferric Red Latossol, cultivated with cover plants rotated with maize and ...the humic fractions were determined prior to planting, after management of ...
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Analysis of quantification methodologies for humic substances in leachates from solid waste landfills
... leachates from old landfills, hinders the treatment of leachate due to the high degree of recalcitrance of organic matter. In this study, two quantification methods were tested for two leachates generated in solid waste ...
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Humic substances and its distribution in coffee crop under cover crops and weed
... Humic substances comprised between 47 % and 50 % of soil organic carbon. Pruning residues left on the soil surface as green manure directly affect nutri- ent cycling along the depth profile and the ...
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Studies on the interaction between humic substances and conducting polymers for sensor application
... either humic acids or fulvic ...different humic substances, ...and humic acids. This different sensor response for humic and fulvic acids might be related to differences in their ...
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Atrazine interaction with tropical humic substances by Enzyme Linked Immunosorbent Assay
... isolated humic substances on atrazine and the performance of ...in humic solutions by traditional chromatographic methods is c o m p l i c ated and invo l ves va rious steps of ex t raction and ...
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Impact of humic substances and nitrogen fertilising on the fruit quality and yield of custard apple
... of humic substances on fruit species are rarely reported in the literature; however, some investigations have been conducted with papaya (CAVALCANTE et ...containing humic substances developed ...
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Roots of ‘BRS Princesa’ banana fertigated with humic substances and saponin-based plant extracts
... with humic substances, with and without the addition of plant extracts, on the root system of the 'BRS Princesa' banana ...factors: humic substance doses and presence of a plant extract ...of ...
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Characterization of the Interactions between Endocrine Disruptors and Aquatic Humic Substances from Tropical Rivers
... aquatic humic substances (AHS) from tropical rivers were studied using an ultrailtration system equipped with a 1 kDa cut-off cellulose membrane to separate free ED from the fraction bound in the ...
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The influence of aquatic humic substances characteristics on the coagulation efficiency using ferric chloride.
... AQUATIC HUMIC SUBSTANCES CHARACTERISTICS ON THE COAGULATION EFFICIENCY USING FERRIC ...aquatic humic substances on the effectiveness of coagulation with ferric ...aquatic humic ...
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Influence of sediment humic substances on the bioavailability of metals in the aquatic system.
... SEDIMENT HUMIC SUBSTANCES ON THE BIOAVAILABILITY OF METALS IN THE AQUATIC ...sediment humic substances (HS) on the bioavailability of ...
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Agronomic performance and soil chemical attributes in a banana tree orchard fertigated with humic substances
... the humic substances fertigation on growth and yield (p > ...the humic substances fertigation on the soil chemical attributes may explain the lack of significant effects on the growth and ...
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Competition between humic substances and α-amino acids by metal species
... International Humic Substances Society by Travel Bursary to present this work in the 10th International Meeting of the Humic Substances (Boston, August ...
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Towards the thermodynamic treatment of humic substances in soils
... Water-soluble humic substances (HS) have been analyzed in soil solutions (GUIRESSE et al. 2000). Three analysis have been selected, concerning the hydrophiIic (XAD4) and the hydrophobic fraction (XAD8), ...
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Measuring and modeling the hygroscopic growth of two humic substances in mixed aerosol particles of atmospheric relevance
... The humic substances Nordic aquatic fulvic acid reference (NAFA) and Fluka humic acid (HA), obtained from the International Humic Substance Society (IHSS), were chosen as model compounds for ...
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CHANGES IN STRUCTURE AND CONTENT HUMIC SUBSTANCES
... (humic substances) resulting from the decomposition of plant and animal materials in the ...soil. Humic substances are one of the most important fractions of the organic ...organic ...
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Production of humic substances through coal-solubilizing bacteria
... Humic substances (HS) are considered large supra- molecular arrays resulting from the self-assembling of rela- tively small heterogeneous humic molecules derived from the degradation of biological ...
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OXYGEN UPTAKE DURING MINERALIZATION OF HUMIC SUBSTANCES FROM INFERNÃO LAGOON (SÃO PAULO, BRAZIL)
... of humic compounds are produced during ...from humic substances. In this case, conversion of humic subs- tances (HS) into particulate organic carbon (micro- organisms) averaged ...for ...
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