Size and Charge Evaluation of Standard Humic and Fulvic Acids as Crucial Factors to Determine Their Environmental Behavior and Impact [PDF]
Frontiers in Chemistry, 2018 In this work, the size and charge of humic and fulvic standards purchased from the International Humic Substances Society are presented and discussed. The secondary structure of humic substances in water environment as well as the size and shape of the ...
Martina Klučáková
doaj +3 more sources
The Effect of Fulvic Acids Derived from Different Materials on Changing Properties of Albic Black Soil in the Northeast Plain of China [PDF]
Molecules, 2019 Despite low fertility and content of organic carbon in albic black soil, grains are grown in this type of soil in the northeast plain of China in order to find ways to improve the soil’s fertility and crop production. We carried out pot experiments
Mahendar Kumar Sootahar +7 more
doaj +3 more sources
Zinc Binding to Fulvic acids: Assessing the Impact of pH, Metal Concentrations and Chemical Properties of Fulvic Acids on the Mechanism and Stability of Formed Soluble Complexes. [PDF]
Molecules, 2020 The aim of the study was defined as a complementary analysis of molecular interactions between zinc (Zn) and fulvic acids (FAs) at a broad pH range (3–7), different metal concentrations (0–50 mg dm−3) and chemical properties of FAs and their impact on ...
Boguta P, Sokołowska Z.
europepmc +2 more sources
Molecules, 2023 Humic acid is a type of polymeric, organic weak acid mixture with a core aromatic structure and main-component oxygen-containing functional group. Fulvic acid is a type of humic substance that can be dissolved in acid, alkali, or water.
Di Wu +4 more
doaj +2 more sources
Frontiers in Plant Science, 2021 Fulvic acids are organic compounds widely distributed in soils, and the application of fulvic acids is thought to increase crop yield and quality. However, the effects vary among various sources and doses of fulvic acids and environmental and growth ...
Peijia Zhang +8 more
doaj +2 more sources
Spectroscopic characterization of humic and fulvic acids in soil aggregates, Brazil. [PDF]
Heliyon, 2020 Machado W +3 more
europepmc +2 more sources
The Positive Effects of Humic/Fulvic Acid Fertilizers on the Quality of Lemon Fruits
Agronomy, 2022 Humic acid (HA) is a kind of organic substance that has shown good effects in regard to promoting crop growth. In the current study, the influences of three kinds of fertilizers mainly containing humic/fulvic acids, including water-soluble fertilizer ...
Xiaoying He +6 more
doaj +2 more sources
Effect of fulvic acids on lead-induced oxidative stress to metal sensitive Vicia faba L. plant [PDF]
Biology and Fertility of Soils, 2012 Lead (Pb) is a ubiquitous environmental pollutant capable to induce various morphological, physiological, and biochemical functions in plants. Only few publications focus on the influence of Pb speciation both on its phytoavailability and phytotoxicity ...
Shahid, Muhammad +3 more
core +3 more sources
Application of Isotachophoresis to Differentiate Organic Matter in Environmental Samples [PDF]
MoleculesThis paper presents the results of the application of isotachophoresis to analyze organic matter in environmental samples (sewage sludge, river water).
Przemysław Kosobucki
doaj +2 more sources
Fulvic Acids and Viral Infections
The Open Conference Proceedings Journal, 2012 Fulvic acids are active principles in humic substances allowing big absorption of mineral ions from soil through vegetables. They are formed by large organic molecules having several reactive sites. Tested in mice and rats with radio- active labeled ions ( 45 Ca 2+ , 32 PO4 3- , 59 Fe 3+ and 131 I - ) in drinking water, it has been found that for even ...
O. Y. Morales +5 more
openaire +2 more sources