Results 11 to 20 of about 5,143,384 (251)

HUMIC AND FULVIC ACIDS OF GLIRICIDIA AND TITHONIA COMPOSTS FOR ALUMINIUM DETOXIFICATION IN AN ULTISOL [PDF]

open access: yesAGRIVITA Journal of Agricultural Science, 2010
A laboratory experiment was conducted to elucidate roles of Gliricidia sepium and Tithonia diversifolia composts and their extracted humic and fulvic acids on aluminum concentration in an Ultisol.
Wani Hadi Utomo   +3 more
doaj   +1 more source

Characteristics of fulvic acids generated in communes waste landfills [PDF]

open access: yesArchives of Environmental Protection, 2021
The leachate problem is important and difficult to solve in Poland and in the world. The composition and their properties leachates depend on the age of the landfill, type of waste, climatic conditions and the mode of operation of the landfill.
Tomasz Orliński, Anna M. Anielak
doaj   +1 more source

Ultrasound-Assisted Extraction of Humic Substances from Peat: Assessment of Process Efficiency and Products’ Quality

open access: yesMolecules, 2022
Results of efficiency of obtaining humic substances (HSs) from peat in traditional alkaline extraction (TAE) and ultrasound-assisted alkaline extraction (UAAE) are presented.
Dominik Nieweś   +7 more
doaj   +1 more source

Obtaining humic materials by mechanochemical reduction [PDF]

open access: yesMATEC Web of Conferences, 2021
In the study, a mechanochemical modification of peat was carried out, leading to an increase in the number of functional groups and an increase in the solubility of humic complexes with metals.
Yudina Natalya   +3 more
doaj   +1 more source

Characterization of Soil Organic Matter Individual Fractions (Fulvic Acids, Humic Acids, and Humins) by Spectroscopic and Electrochemical Techniques in Agricultural Soils

open access: yes, 2021
The objective of this paper was to investigate the molecular characterization of soil organic matter fractions (humic substances (HS): fulvic acids-FAs, humic acids-HAs, and humins-HNs), which are the most reactive soil components.
Aleksandra Ukalska‐Jaruga   +3 more
semanticscholar   +1 more source

Impact of fulvic acid and free amino acids on paclobutrazol absorption by ‘Keitt’ mango

open access: yesRevista Ambiente & Água, 2020
This study evaluated the impact of fulvic acid and free amino acids on paclobutrazol soil residue, their absorption and effects on ‘Keitt’ mango grown in tropical semi-arid environmental conditions.
Luan dos Santos Silva   +2 more
doaj   +1 more source

Organic Matter Content and Composition of Soils with Stagnic Properties From Bulgaria [PDF]

open access: yesBulgarian Journal of Soil Science, 2016
This paper deals with the contents and composition of organic matter in soils with stagnic properties. Study on the content and composition of soil organic matter, shows that these soils have low content of organic carbon.
Biser Hristov   +2 more
doaj   +1 more source

Chemical properties of peat in three peatlands with balneological potential in Estonia [PDF]

open access: yesEstonian Journal of Earth Sciences, 2011
Peat and various peat preparations have been successfully used in balneology. When considering the biological effects of peat, humic substances have been found to be of particular importance.
Mall Orru, Monika Übner, Hans Orru
doaj   +1 more source

Directed Synthesis of Humic and Fulvic Derivatives with Enhanced Antioxidant Properties

open access: yesAgronomy, 2021
Redox moieties, which are present in the molecular backbone of humic substances (HS), govern their antioxidant properties. We hypothesized that a directed modification of the humic backbone via incorporation of redox moieties with known redox properties ...
Alexander B. Volikov   +11 more
doaj   +1 more source

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