Results 1 to 10 of about 63,814 (211)

Pharmacological Effects of Humic Substances and Their Signaling Mechanisms [PDF]

open access: yesMolecules
This comprehensive review presents the results of an in-depth analytical literature search on the biological activity of humic substances and their possible pharmacological mechanisms of action.
Maria V. Zykova   +10 more
doaj   +2 more sources

CHANGES IN STRUCTURE AND CONTENT HUMIC SUBSTANCES [PDF]

open access: yesTransactions of the VŠB: Technical University of Ostrava, Safety Engineering Series, 2016
The paper deals with the process of thermal degradation of humic substances in soil samples exposed to increased temperature. To determine the basic properties of humic substances, humic and fulvic acids are used conventional fractionation chemical ...
Maroš SIROTIAK, Alica BARTOŠOVÁ
doaj   +4 more sources

Extraction yield of humic substances from organic materials

open access: yesDyna, 2022
At present there is a great advance in the use of organic substances as fertilizers; humic substances are one of them with various forms of extraction.
Irina Pedroso-Rodriguez   +5 more
doaj   +1 more source

Sonocatalytic Degradation of Humic Substances From Aquatic Environments Using MgO Nanoparticles [PDF]

open access: yesAvicenna Journal of Environmental Health Engineering, 2017
Humic substances are considered as one of the major natural organic contaminants in water resources. Presence of such substances in the drinking water supply resources results in poor water quality and jeopardizes the consumer’s health.
Reza Darvishi Cheshmeh Soltani   +5 more
doaj   +1 more source

Assessing the potential of biochar aged by humic substances to enhance plant growth and soil biological activity

open access: yesChemical and Biological Technologies in Agriculture, 2021
Background Soil carbon-rich organic amendments (biochar, humic substances) may improve the quality and fertility of arable soil. Their co-application can additively enhance the beneficial effect on soil.
Tereza Hammerschmiedt   +13 more
doaj   +1 more source

Humic substances [PDF]

open access: yesEnvironmental Science and Pollution Research, 2007
Freshwater bodies which chemistry is dominated by dissolved humic substances (HS) seem to be the major type on Earth, due to huge non-calcareous geological formations in the Northern Hemisphere and in the tropics. Based on the paradigm of the inertness of being organic, direct interactions of dissolved HS with freshwater organisms are mostly neglected.
Christian E W, Steinberg   +4 more
openaire   +4 more sources

Evaluation of Humic Fertilizers on Kentucky Bluegrass Subjected to Simulated Traffic

open access: yesAgronomy, 2021
Sports field traffic tolerance is critical for offering athletes a safe playing surface and adequate turfgrass performance. Humic substances act as bio-stimulants that could enhance turfgrass traffic tolerance by increasing turfgrass efficiency, which ...
Alex J. Lindsey   +2 more
doaj   +1 more source

Dissolved humic substances supplied as potential enhancers of Cu, Cd, and Pb adsorption by two different mangrove sediments [PDF]

open access: yes, 2018
Purpose The external supply of humic substances has been recently suggested for the remediation of metal-polluted sediments; however, little is known about how to supply them and their effects on metal mobility.
Barros Dobbss, Leonardo   +4 more
core   +1 more source

The Effect of Supramolecular Humic Acids on the Diffusivity of Metal Ions in Agarose Hydrogel

open access: yesMolecules, 2022
Humic acids are known as natural substances of a supramolecular nature. Their self-assembly ability can affect the migration of heavy metals and other pollutants in nature.
Martina Klučáková
doaj   +1 more source

Concepts and Misconceptions of Humic Substances as the Stable Part of Soil Organic Matter: A Review

open access: yesAgronomy, 2018
In the last three decades, the concept of soil humic substances has been questioned in two main directions. Misinterpretations of CP MAS13C NMR spectroscopy led to the conclusion that soil organic matter is mainly aliphatic, questioning the theory of ...
Jörg Gerke
doaj   +1 more source

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