humic substance

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Related to humic substance: ulmic acid
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Noun1.humic substance - an organic residue of decaying organic matter
organic compound - any compound of carbon and another element or a radical
fulvic acid - a yellow to yellow-brown humic substance that is soluble in water under all pH conditions; "they measured the fluvial fulvic acid"
humic acid - a dark brown humic substance that is soluble in water only at pH values greater than 2; "the half-life of humic acid is measured in centuries"
humin - a black humic substance that is not soluble in water
References in periodicals archive ?
Sirajuddin of National Centre of Excellence in Analytical Chemistry will deliver keynote addresses at the 4thA International KOP Regional Development Symposium onA October 21 to 23, 2016A and at 3rdA National Humic Substance Congress with international participation from November 3 to 5, 2016A respectively.
Top-dressing fertilization was applied through organomineral fertigation, with weekly application of urea and potassium chloride as sources of nitrogen and potassium, based on soil chemical analysis, and monthly application of humic substance and plant extract.
Humic substance mineralization in a tropical oxbow lake (Sao Paulo, Brazil).
Effect of NPK and humic substance applications on vegetative growth of Egazy olive seedlings.
The binding sites for Cu, Cd, and Pb are strongly related to the humic substance content of extracellular polymers (ECP) in activated sludge (Guibaud et al.
Independent of the humic substance use (Figure 2A and B), the pulp pH of the custard apple fruits increased with increasing nitrogen levels until it reached 100 g per plant, and this increase was immediately followed by decay.
Studies often show reversal of deadly cancers and tumors using special humic substance therapies [47].
Kettrup, Capillary electrophoresis for the characterization of humic substance, Water Research: 29(9), 2149-2159 (1995).
The amber pigmentation suggests the presence of a humic substance, a known inhibitor to downstream applications such as PCR (Atlas and Bartha, 1997).
In: Proceedings of the 2nd Symposium on Peat and Humic Substance Preparations in Medicine, Veterinary Medicine and Body Care.
It has been successfully applied to the analysis of Suwannee River humic acid (7) and led to the assignment of thousands of empirical formulas for the HA standard obtained from the International Humic Substance Society located at the Georgia Institute of Technology (Atlanta, GA).