humic acid


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Related to humic acid: fulvic acid

humic acid

[′hyü·mik ′as·əd]
(organic chemistry)
Any of various complex organic acids obtained from humus; insoluble in acids and organic solvents.
References in periodicals archive ?
Zang X, Van Heemst JDH, Dria KJ, Hatcher PG (2000) Encapsulation of protein in humic acid from a histosol as an explanation for the occurrence of organic nitrogen in soil and sediment.
Boxplot of the ratios between the C contents of the fractions humic acid and fulvic acid (CHA/CFA) and between the soluble fractions of the alkaline extract and the C content in the humin fraction (AE/Hum) in the layers of 0-10 and 10-20 cm
N use efficiency parameters: N-partial factor productivity (PFPN) and N-agronomic efficiency (AEN) found increasing statistically with increase in humic acid application rates; upper rate H2 provided the maximum calculations for PFPN (53.
A solution of calcium chloride and fulvic acid and a solution of calcium chloride and humic acid were prepared.
There is a need to gain insight regarding the effect of humic acid application on grain, floret production and vase life of gladiolus flowers.
21, 22, 23, 24] Improving growth characters due to response to micronutrients may be due to their positive action on increasing cell division in the meristimatic tissues and accelerating carbohydrates and proteins formation and other researchers concluded that, application of Zn and or humic acid increased growth vigor and caused noticeable increase in height and girth of pseudostem, number of green leaves and accelerated fruit maturity for Williams and GrandNain banana cultivars grown [25, 26].
The current work is about adsorption characteristics of lead on montmorrilonite clay at fixed pH in the presence of humic acid by spectrophotometric method.
As stated by [14] that fulvic acid has higher mobility than humic acid due to the molecular weight of fulvic acid is lower than humic acid.
In vitro and in vivo assessment of humic acid as an aflatoxin binder in broiler chickens.
The interactive effects humic acid application and several of nitrogen fertilizer on remobilization of star wheat.
5 tons humic acid, one ton ascorbic acid, one ton special calcium & 5 Kg sacsonic acid), (c) 6,000 twenty liters jericans duly printed and other 5,000 twenty liters jericans plain, 3,000 10 liters jericans plain, 50,000 two liters jericans duly printed, also 50,000 one liter jerican plain, also (d) chemicals for the Nima Plus Factory.