Results 61 to 70 of about 944,278 (220)

Fractionation of raw and methylated fulvic acids from lignite by thin-layer chromatography

open access: yes, 2003
Raw and methylated fulvic acids from lignite were subjected to thin-layer chromatography on silica gel, using the simplex method to optimize the eluant composition.
Romero, Clemente   +1 more
core   +1 more source

BORON CONCENTRATION IN HUMIC AND FULVIC ACID EXTRACTS OF SOIL EPIPEDON IN SAN VITALE PINEWOOD (RAVENNA, ITALY)

open access: yesEQA, 2010
Humified Soil Organic Matter (SOM) plays a crucial role in the assessment of soil quality since it makes up a significant part of the total organic carbon and nitrogen in soils.
Maddalena Pennisi   +3 more
doaj   +1 more source

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

Electrolysis‐treated biosolids enhance wheat growth and alter soil health parameters

open access: yesAgrosystems, Geosciences &Environment, Volume 9, Issue 4, December 2026.
Abstract Biosolid‐based fertilizers can benefit agriculture by supporting circular nutrient economies, reducing fertilizer costs, and minimizing environmental impacts compared to inorganic fertilizers. A 125‐day greenhouse experiment was conducted to assess the effects of electrolysis‐treated biosolids on wheat (Triticum aestivum) growth and soil ...
Sandesh Bhatta   +10 more
wiley   +1 more source

Quantifying Interactions between Singlet Oxygen and Aquatic Fulvic Acids

open access: yes, 2016
Singlet oxygen (1O2) is a reactive oxygen species produced by dissolved organic matter (DOM) in sunlit waters. While the production of 1O2 by DOM has been studied, little is known on interactions between 1O2 and DOM.
James B. Cotner (2068942)   +2 more
core   +1 more source

Wildfire in the Surrounding Landscape Alters Limnological Conditions and Plankton Communities in a Tropical Reservoir

open access: yesInternational Review of Hydrobiology, Volume 111, Issue 2, December 2026.
ABSTRACT Wildfires are becoming increasingly frequent and severe as a consequence of climate change. Their impacts on terrestrial ecosystems and on the atmosphere include the release of gases and ash, as well as enhanced soil susceptibility to erosion and the downstream transport of materials into aquatic systems.
Daniel Guido Giongo   +7 more
wiley   +1 more source

Characterization of Aquatic Fulvic Acids by Chromatographic Methods [PDF]

open access: yes, 1990
Several chromatographic and spectroscopic techniques were applied to Suwanne River reference fulvic acids (FA) and their permethylated derivatives. Retention mechanisms, structural characteristics, and thermal stabilities of FA and its derivatives and ...
Ong, Wen-ching
core  

Mechanism of Combined Improvement of Saline‐Alkali Soil by Artificial Humic Acid and Microbial Inoculant

open access: yesLand Degradation &Development, Volume 37, Issue 17, Page 12406-12417, November 2026.
ABSTRACT To address the widespread constraints imposed by saline‐alkaline soils on agricultural production worldwide, the combined reclamation and carbon cycle regulation effects of artificial humic acid (AHA) and a multifunctional microbial inoculant were evaluated through pot experiments. Results demonstrated that co‐application of AHA (4 g·kg−1) and
Ying Zhao   +4 more
wiley   +1 more source

Effects of Organic Fertilizer Substitutions on Latex Yield and Soil Fertility in Hevea brasiliensis Plantations: A Case Study in Southern Philippines

open access: yesLand Degradation &Development, Volume 37, Issue 17, Page 12620-12636, November 2026.
ABSTRACT Rubber plantations can be a major source of income for small landholder farmers in rural communities across Southern Asia. However, rising fertilizer costs and progressive soil degradation threaten long‐term productivity and economic viability.
Oscar Jurado   +7 more
wiley   +1 more source

Bioavailability of Heavy Metals in the Sediment of the High Andean Wetland Collotacocha - Recuay – Ancash

open access: yesRevista de Metalurgia
The objective of this study is to analyze the relationship between the concentrations of humic and fulvic acids and the bioavailability of heavy metals in the sediment of the Altoandino Collotacocha wetland.
Mario Vladimir Leyva Collas   +1 more
doaj   +1 more source

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