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
doaj +1 more source
Effects of extraction and fractionation period on the yield of a tropical peat soil (Hemists) humic acids [PDF]
, 2007 The isolation of humic acids from soils is laborious and time consuming. Factors that affect the yield of humic acids isolated from soils include extraction, fractionation and purification periods.
Ahmed, Osumanu Haruna +3 more
core +1 more source
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
doaj +1 more source
The influence of mechanochemical modification on prevention of toxic ability of humic acids towards phenanthrene in aquatic environment [PDF]
, 2015 The aim of the research work is to quantify interaction between phenanthrene with modified humic acids in aquatic environment. The changes in the structure and properties of humic acids after modifications were studied with 1Н NMR spectroscopy and ...
Glyzina, Tatiana Svyatoslavovna +3 more
core +1 more source
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
doaj +1 more source
Humic acids trigger the weak acids stress response in maize seedlings
Chemical and Biological Technologies in Agriculture, 2020 Background Plants primed by humic acids showed physiological and molecular response against different abiotic stresses without the presence of stressor agents (salinity, drought, heavy metal toxicity).
Daiane Carvalho Baía +5 more
doaj +1 more source
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 +3 more
core +3 more sources
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
doaj +1 more source
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
doaj +1 more source
Behaviours of natural organic matter in membrane filtration for surface water treatment : a review [PDF]
, 2006 Membrane application in surface water treatment provides many advantages over conventional treatment. However, this effort is hampered by the fouling issue, which restricts its widespread application due to increases in hydraulic resistances, operational
Ismail, A. F. +2 more
core +1 more source