Results 21 to 30 of about 844,530 (247)
STUDIES ON THE STRUCTURE OF HUMIC SUBSTANCES EXTRACTED FROM DIFFERENT SOILS [PDF]
Journal of Soil Sciences and Agricultural Engineering, 2004 Humic and fulvic acids were extracted from normal (non-saune), saane, alkaline and newly reclaimed salt affected soils. These humic substances were characterized in terms of chemical composition.
A. A. Taha
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Бюллетень Почвенного института им. В.В. Докучаева, 2022 The elemental composition and structure of humic acids in the soddy-podzolic heavy loamy soil of the Cis-Urals were studied during long-term application of organic, mineral and organo-mineral fertilizers under conditions of a long-term stationary ...
N. E. Zavyalova +3 more
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How Humic Acids Affect the Rheological and Transport Properties of Hydrogels
Molecules, 2019 Humic acids are often regarded as substances with a supramolecular structure which plays an important role in Nature. Their addition into hydrogels can affect their behavior and functioning in different applications.
Martina Klucakova +2 more
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Structural changes in lipid-free humic acids during composting of sewage sludge [PDF]
, 2005 Structural changes in humic acids (HAs), extracted after lipid removal from sewage sludge during composting, were investigated using various chemical methods (elemental analysis, Fourier transform infrared spectroscopy and 13C-nuclear magnetic resonance
Amir, Soumia +4 more
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Humification degree of Rendzina soil humic acids influenced by carbonate leaching and land use [PDF]
Journal of Agricultural Sciences (Belgrade), 2015 The humification degrees of humic acids extracted from calcareous and decarbonated Rendzinas under different land use were characterized upon their optical properties, to evaluate the influence of carbonate leaching (decarbonation) and different
Radmanović Svjetlana B. +2 more
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Structural characterization of humic acids, extracted from sewage sludge during composting, by thermochemolysis–gas chromatography–mass spectrometry [PDF]
, 2006 Thermochemolysis coupled with gas chromatography and mass spectrometry were applied to determine the structure of humic acids (HA) extracted from a sewage sludge and straw mixture at different steps of composting.
Bailly, J.-R. +16 more
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Influence of foliar applications of humic acids on yield and fruit quality of table grape cv. Italia
OENO One, 2008 Aims: The responses in growth, yield and quality components of a Vitis vinifera cultivar (Italia) to the foliar applications of two humic acids extracted from a soil and a compost have been studied. Methods and results: The foliar applications of the two
Giuseppe Ferrara, Gennaro Brunetti
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The effect of fertilization with brown coal on Haplic Luvisol humic acids
Plant, Soil and Environment, 2002 The influence of fertilization with brown coal (used as preparation called Rekulter) on properties of humic acids extracted from haplic luvisol was studied.
B. Dębska +2 more
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Бюллетень Почвенного института им. В.В. Докучаева, 2019 The article provides research results and comparative analysis of humic acids in sod-podzolic soil of the Experimental Forest of the Russian State Agrarian University (protected area) and urban soils located in the Timiryazev district of Moscow.
A. I. Filatova +2 more
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Replenishing Humic Acids in Agricultural Soils
Agronomy, 2016 For many decades, it was commonly believed that humic acids were formed in soils by the microbial conversion of plant lignins. However, an experiment to test whether these humic acids were formed prior to plant matter reaching the soil was never reported
Michael Susic
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