Results 121 to 130 of about 944,278 (220)
, 1987 cited By 10International audienceThe comparison of the corrected excitation spectrum of a solution of fulvic acids at pH 2 and 7 with the absorption spectrum reveals the occurence of an important gap in the UV region of the spectra for both pH. Important
Donard, Olivier François Xavier +2 more
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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 Boguta P, Sokołowska Z.
europepmc +1 more source
Using ultrasonic fields in the analysis of blak earth’s humic and fulvic acids
, 2012 The structure of humate-fulvate complex is investigated and the influence of physical fields on this complex particularly ultrasound is estimated.
Сафонова, Я.Д. +2 more
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, 2013 Characteristics of dissolved humic and fulvic acids in river waters were studied during 2003–2005 at 4 sites located in the headwaters and in the upper and lower Tokachi River, including a lowland tributary site.
Aramaki, Takafumi +8 more
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Pyrolysis-gas chromatography-mass spectrometry of soil polysaccharides, soil fulvic acids and polymaleic acid [PDF]
, 1984 7 pages, 4 figures, 1 table, 26 references.Cryogenic Curie-point pyrolysis-gas chromatography-mass spectrometry has been applied to investigate the chemical composition of organic matter present in soils.
Leeuw, J. W. de +1 more
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Dissociation Constants Of Fulvic Acids, Isolated From Natural Waters Of Georgia
, 2022 Fulvic Acids (FA) are major organic substances dissolved in natural waters (70-80%) [1-3]. FA form stable complexes with heavy metals and radionuclides and stipulate migration forms thereof in natural waters and soils [1,2,4-9] .
Makharadze, T. (Tamar)
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Application of fulvic acid in agriculture: An overview [PDF]
Fulvic acids, an essential fraction of soil organic matter, have emerged as influential agents in enhancing soil fertility and boosting crop productivity.
Ramah, K +6 more
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Characteristics of humic and fulvic acids in Arabian Sea sediments
, 1995 119-127Humic and fulvic acids isolated from some of the shelf, slope and offshore sediments of the Arabian Sea were studied. The molecular weight, functional groups, elemental composition and infrared spectra were examined. Humic substances, dominated by
Sardessai, Sugandha
core
Effects of Forest Fires on the Organic Matter of Soils in Plana аnd Ihtimanska Sredna Gora Mountains
Почвознание, агрохимия и екология, 2011 This study deals with the effects of forest fires on the soil organic matter (SOM) аnd the quantity of Humic acids (НА) and Fulvic acids (FA). The function of fire type (surface or crown), dominant tree species and soil characteristics are also studied ...
Emiliya Velizarova, Ekaterina Filcheva
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