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Effect of different levels of humic acids on the nutrient content, plant growth, and soil properties under conditions of salinity
humic acids nutrient content plant growth salinity soil properties
2015/3/3
In this study, the effects were investigated of salinity, foliar and soil applications of humic substances on the growth and mineral nutrients uptake of Corn (Hagein, Fardy10), and the comparison was ...
Spectroscopic Characteristics of Humic Acids Originated in Soils and Lignite
humic acids UV-VIS FTIR and SFS spectroscopy
2015/3/1
The aim of our work was to characterise the stability, humification degree, and principal classes of fluorophores in humic acids isolated from different matrices. Soil humic acids were isolated from a...
Molecular size distribution and hydrophilic and hydrophobic properties of humic acids isolated from forest soil
forest soil humic acids HPSEC hydrophobic fractions hydrophilic fractions
2015/1/30
The aim of the present paper was to determine hydrophilic and hydrophobic properties and the degree of polydispersity of humic acids depending on their degree of maturity and the properties of the pla...
Phosphorus fractions in arable and mountain soils and their humic acids
inorganic P organic P soil types humic acids 31P NMR
2015/1/30
Soil phosphorus (P) can exist in various inorganic (Pi) and organic forms (Po). Specific determination of Pi can be obtained by fractionate methods. However, the discrimination between the chemically ...
Humus and Humic Acids of Luvisol and Cambisol of Jiguli Ridges, Samara Region, Russia
Humus and Humic Acids Luvisol and Cambisol Jiguli Ridges Samara Region Russia
2009/12/2
Luvisols and Cambisols are two types of sub-boreal soils, which are known as continental and humid-ocean types of soils in deciduous forests respectively. Morphological features of soil, which are fre...
The variation of mobile humic acids and mineral nitrogen in the soil as affected by the use of perennial grasses for green manure
perennial grasses mobile humic acids mineral nitrogen Cambisol
2010/1/19
The paper presents the findings of the experiments conducted on a clay loam gleyic
Cambisol mical Research in 20072008. The tests were designed to establish the effects of the use of perennial grass...
CHARACTERISTICS OF HUMIC ACIDS ISOLATED FROM SOILS UNDER VARIOUS FARMING SYSTEMS
ecological farming integrated farming humus
2009/3/30
Farming systems strongly affect soil humus. In this study some humus characteristics were used to compare the humus quantity and quality under two different farming systems. The field experiment was e...
The surface properties of humic acids extracted from chernozem and grey-brown podzolic soils
adsorption specific surface area molar energy of adsorption
2008/11/11
The authors characterized selected surface properties of humic acid preparations extracted from three types of Polish soils (degraded chernozem developed from loess, grey-brown podzolic soil developed...