humic


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Related to humic: humic acid, humic coal

humic

[′hyü·mik]
(geology)
Pertaining to or derived from humus.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
FDA hydrolysis was used to represent the activities of microorganisms in soil (Choi 2009), and the UE and ALP activities were analysed to investigate the key enzymes under humic acid and cow dung treatments.
Thus, the aim of the present study was to characterize the purified humic and fulvic acids of five organic substrates using the UV-VIS spectroscopy, the FTIR and the CHN/O elementary analysis techniques.
These same practices are likely also involved in increasing the important humic substances in soil."
Thus, our study aimed to evaluate the humification rates and structural composition of humic acids in the suspended soil in the tropical forest of South Vietnam.
The fluorescence quantum yield was measured by the method of the reference compound applied earlier for the samples of CDOM in natural water and commercial humic preparations [6, 7, 12].
Schnitzer, "Chemical and physical characteristics of humic and fulvic acids extracted from soils of the Mediterranean region," Geoderma, vol.
FIGURE 2: Organic Carbon content on fractions of the humic substances (SH): fulvic acids (AF), humic acids (AH), humin (HUM), and non-humic substances (SNH) on Humic Cambisol from areas under native grassland (CN), five-year old Pinus (P05), sixteen-year old Pinus (P16), and twenty-one-year old Pinus (P21) (Graph A) and proportion of these chemical fractions related to total organic carbon (TOC) (Graph B).
"We made an attempt at understanding the structural reasons behind the antiviral activity of the molecular components of humic substances.
Among them, the content of humic acid and the number of probiotics live bacteria are the key functional components to play the biological role.
The use of synthetic herbicides and pesticides contributes to a major degradation in soil health and the loss of humic acid.