Results 31 to 40 of about 944,278 (220)
The effects of acid precipitation with different liquid acids on spectral properties of fulvic acid extracted from peat was studied to select the most appropriate liquid acid for the acid precipitation step of the alkali solution acid precipitation ...
Li-Tong Ma, Ya-Nan Lu, Ya-Xiong Wang
doaj +1 more source
Use of biologically active substances in hops
In four-year experiments, hop was treated with 7 biologically active substances in two terms during vegetation: Lignohumate max (a mixture of humic acids and fulvic acids), Lexin (a mixture of humic acids and fulvic acids enriched with auxins), Lexenzym (
Pavel PROCHÁZKA +4 more
doaj +1 more source
A Comprehensive Toxicological Assessment of Fulvic Acid
Fulvic acid (FA), a humic substance, has several nutraceutical properties, including anti‐inflammation, antimicrobial, and immune regulation abilities. However, systematic safety assessment remains insufficient. In the present study, a battery of toxicological studies was conducted per internationally accepted standards to investigate the genotoxicity ...
Chongshan Dai +4 more
openaire +2 more sources
Competition from Cu(II), Zn(II) and Cd(II) in Pb(II) binding to Suwannee River Fulvic Acid [PDF]
This is a study of trace metal competition in the complexation of Pb(II) by well-characterized humic substances, namely Suwannee River Fulvic Acid (SRFA) in model solutions.
Chakrabarti, C.L., Chakraborty, P.
core +1 more source
Humic and Fulvic Acids as Specific Sorbents of Herbicides in Water
The ability of humic and fulvic acids (isolated from lignite with a simple, quick, and inexpensive method) to bind the active ingredients of herbicides contaminating drinking water is evaluated.
Vrantsi E., Lakka A., Bozinou E., Athanasiadis V., Papadaki E.S., Dourtoglou V.G., Lalas S.I.
core +1 more source
Influence of humus acids on mobility and biological availability of iron, zinc and copper
Soil organic matter is known as an important condition for the mobility of trace elements in soils, their geo- chemical migration and availability to plants.
A. Fateev +3 more
doaj +1 more source
Field Efficiency of Humic Substances, Boric Acid and some Novel Insecticides against Aphis gossypii Glover and Bemisia tabaci (Gennadius) on Cotton Plants [PDF]
Nutritive acids improve the plant growth via increasing its carbohydrates content and nutrients uptake, and enhance the plant resistance to biotic and a biotic stress factors.
Madeha El - Dewy, E. El - Zahi
doaj +1 more source
Biostimulants derived from organic urban wastes and biomasses: An innovative approach
We used humic and fulvic acids extracted from digestate to formulate nanohybrids with potential applications in agronomy. In order to obtain a synergic co-release of plant-beneficial agents, we functionalized with humic substances two inorganic matrixes:
Alessia Giordana +5 more
doaj +1 more source
Heavy metal distribution between fractions of humic substances in heavily polluted soils
Soil organic matter is important in controlling heavy metal behaviour in soils. This study aims to determine the distribution of organically bound Cd, Pb, and Zn between humic and fulvic acids in 20 samples of heavily polluted Fluvisols.
L. Borůvka, O. Drábek
doaj +1 more source
The relevance. When studying the formation of the composition of organic-rich waters, it is necessary to take into account organomineral compounds that shift the equilibria in geochemical processes (dissolution, leaching, precipitation and co-deposition,
Olesya E. Lepokurova +2 more
doaj +1 more source

