Chromatographic characteristics (HPLC, HPSEC) of humic acids of soil fertilised with various organic fertilisers

Dębska, B.; Banach-Szott, Magdalena; Dziamski, Andrzej; Gonet, S. S.

doi:10.1080/02757540.2010.501027

Cited by 18 publications

(31 citation statements)

References 11 publications

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“…The Fe o component appears more important than organic carbon in terms of waterstable aggregates > 0.25 mm for soils with relatively low soil organic matter contents (Duiker et al 2003). Amorphous iron in the form of poorly crystalline Fe oxide-hydroxides (e.g., ferrihydrite) is most often associated with clay minerals, and it occurs in the form of durable bonds with humus (Cornell and Schwertmann 1996). Clay minerals play an important role in aggregate stability of soils (Denef and Six 2005).…”

Section: Discussionmentioning

confidence: 99%

“…By applying the high-performance liquid chromatography (HPLC) method, one can divide the molecules of HAs into fractions that are hydrophobic and hydrophilic in nature (Woelki et al 1997;Preuße et al 2000;Sierra et al 2006;Dębska et al 2010Dębska et al , 2012). An additional aspect of the study of HAs is the determination of the value of absorbance at 465 nm (A 465 ) and 665 nm (A 665 ) and the absorbance ratio A 4/6 (Jing-an et al 2007; Kalembasa and Becher 2009;KondratowiczMaciejewska et al 2011) which can be used to estimate the maturity of the HAs (Polak et al 2011) and as an indicator of the degree of organic matter humification.…”

Section: Introductionmentioning

confidence: 99%

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Humic substances and aggregate stability in rhizospheric and non-rhizospheric soil

Kobierski

Kondratowicz-Maciejewska

Banach-Szott

et al. 2018

J Soils Sediments

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Purpose The paper describes rhizospheric (Rs) and non-rhizospheric (nRs) soil to demonstrate the zone of the plant root impact on physical and chemical properties of the soil. The effects of the process accompanying the transformations of organic matter into humic substances in the rhizosphere of Bcommon dandelion^Taraxacum officinale have been determined, and the properties of humic acids (HAs) were described. The importance of iron and clay minerals for the formation of a stable and water-resistant soil structure has been emphasized. Materials and methods The laboratory analysis involved determination of basic physical and chemical soil properties: texture, pH, cation exchange capacity (CEC), electrical conductivity, and content of total organic carbon (TOC) and dissolved organic carbon (DOC) and quality of humic substances: optical properties of HAs and its separation into hydrophilic (HIL) and hydrophobic (HOB) fractions, speciation of iron, glomalin operationally described as an easily extractable glomalin-related soil protein (EE-GRSP), and soil aggregate stability (SAS) of six size classes of soil aggregates. Results and discussion The Rs was reported with a higher TOC and DOC content (measured in the CaCl 2 extracts), however not significantly. The HAs isolated from Rs revealed a significantly higher content of humic substances at its initial decomposition stage, as compared with nRs. A significantly higher concentration of EE-GRSP was noted in the aggregates of the rhizospheric zone (mean 1.14 g kg −1 ) than in the aggregates collected from root-free soil (mean 0.94 g kg −1 ). There was noted the highest mean share of 1-3 mm soil aggregates in Rs as well as in nRs, respectively 44.4 and 38.3%. The soil material both in Rs and in nRs contained high amounts of exchangeable Ca 2+ , and smectite is the predominant clay mineral. It was favorable for the accumulation of organic carbon and for the formation of good soil physical condition (tilth). Higher but insignificant SAS values were observed for Rs (mean SAS = 95.6%) than for nRs (mean SAS = 93.9%). Conclusions The studies confirm the role of common dandelion roots in the process of organic carbon accumulation in rhizospheric zone and a favorable effect on the mechanism of the formation of water-resistant aggregates. Higher values of SAS for the Rs were affected by the content of TOC, DOC, exchangeable Ca 2+ and the concentration of EE-GRSP, and, less considerably, the content of Fe and clay minerals.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Humic substances and aggregate stability in rhizospheric and non-rhizospheric soil

Kobierski

Kondratowicz-Maciejewska

Banach-Szott

et al. 2018

J Soils Sediments

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“…Parameter HIL/ΣHOB, as shown by, e.g. Debska et al (2007Debska et al ( , 2010Debska et al ( , 2012, is connected with the degree of organic matter humification; the value of the parameter increases with an increase in the degree of the maturity of the molecules of humic acids. In this experiment, after 180 days of incubation, the values of the HIL/ΣHOB ratio were similar to the values of the ratio of the HAs of the original soil samples.…”

Section: Analyses Of the Fourier Transform Infrared (Ftir) Spectra Ofmentioning

confidence: 99%

“…2). Fractions of a retention time of 3.0-8.0 min show greater hydrophilic properties, whereas the fractions of a retention time between 12.0 and 25.0 min become more and more hydrophobic (Woelki et al 1997;Preuße et al 2000;Debska et al 2007Debska et al , 2010Debska et al , 2012. In the humic acids that were analysed, the share of the hydrophobic fraction was slightly higher than the share of the fraction containing compounds with hydrophilic properties (Table 5).…”

Section: Analyses Of the Fourier Transform Infrared (Ftir) Spectra Ofmentioning

confidence: 99%

Effect of soil pollution with polycyclic aromatic hydrocarbons on the properties of humic acids

2014

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Purpose Interestingly, soil is the component of the natural environment in which most hydrophobic organic pollution including polycyclic aromatic hydrocarbons (PAHs) gets accumulated. The aim of the present paper was to determine the effect of soil pollution with PAHs on the elemental composition, spectral properties, and hydrophobic and hydrophilic properties of humic acids. The research was performed on different types of soil samples that were artificially polluted with selected PAHs (anthracene, pyrene, fluorene and chrysene). Materials and methods The soil samples were polluted with s e l e c t e d PA H s i n a n am ou n t c or r e s p o nd i n g t o 10 mg PAHs kg −1 . The PAHs-polluted soil samples were incubated for 180 and 360 days at a temperature of 20-25°C and fixed moisture (50 % of field water capacity). Humic acids (HAs) were extracted from the soil samples prior to the incubation (additionally, soils not polluted with PAHs) and after 180 and 360 days of incubation. For isolated HAs, the following analyses were performed: elemental composition, UV-Vis and IR spectra, susceptibility to oxidation, and hydrophilic (HIL) and hydrophobic (HOB) properties were determined using high-performance liquid chromatography.Results and discussion The research demonstrated that introducing anthracene, fluorene, pyrene and chrysene to soil samples resulted in a change in some of the quality parameters of humic acids. However, the intensity and the direction of those changes were determined by soil properties. The changes of the parameters, once PAHs were introduced, that did not depend on the soil properties were ΔA 665u and ΔA 465u (susceptibility to oxidation at wavelengths of 465 and 665 nm) as well as HIL/ΣHOB. The same tendency in changes in the structure of humic acids, once PAHs were introduced, was also observed based on the Fourier transform infrared spectra pattern. Conclusions A single pollution of soils with PAHs that leads to changes in the quality parameters of humic acids shows that, as for the soils permanently exposed to pollution with those compounds, significant changes can occur in the properties of humic acids. As a result, it can lead to a change in the functions played by humic acids in the environment.

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“…Increasing of organic substances inputs by the way of farming system is a key role of carbon content increasing (Janzen et al, 1992). Soil organic matter is one of components, which is changed by soil management system (Dębska et al, 2009;Dębska et al, 2010;Robinson et al, 1994;Šimanský and Zaujec, 2009). By reducing its content, the soil productivity also decreases (Bauer and Black, 1994).…”

Section: Introductionmentioning

confidence: 99%

Quantity and Quality of Soil Organic Matter in Ecological and Integrated Farming System

Tobiašová

2012

JCEA

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Impact of farming system on the quantity and quality of soil organic matter was studied. The experiment was situated on Haplic Luvisol of Research -experimental base of Slovak University of Agriculture Dolná Malanta, where over a period of 5 years soil samples from ecological (ES) and integrated (IS) farming system were collected. In period of 5 years, on average higher contents of total organic carbon (TOC) and total nitrogen (NT) were in ES (1.219%; 1382 mg.kg ). TOC content in the ES was on the level of variants with application of farmyard manure, while in the IS it was on the level of non-fertilized variants. The highest contents of TOC and non-labile carbon (CNL) were recorded in 2010 when the previous crops were alfalfa (Medicago sativa) and pea (Pisum sativum). Higher content of CNL was in the ES than in the IS. A positive linear relationship between the amounts of precipitation per year and during the vegetation was observed not only between TOC contents (r = 0.914, P < 0.05 and r = 0.971, P < 0.01), but also CNL contents (r = 0.880, P < 0.05 and r = 0.952, P < 0.05). The most stabilized humus substances were in 2007, when the highest average temperature per year and during the vegetation was recorded. In 2010, the lowest amounts of extracted humus substances were recorded, with domination of humic acids. Their stability, however, on the base of colour coefficients of humus substances and humic acids were the lowest from all years. The humus substances were more stabilized in the IS than in the ES. ). Obsah TOC sa v ES pohyboval na úrovni variantov hnojených maštaľným hnojom, kým v IS to bolo približne na úrovni nehnojeného variantu. Najvyššie obsahy TOC a nelabilného uhlíka (CNL) boli zaznamenané v roku 2010, kedy boli predplodinami lucerna siata (Medicago sativa) a hrach siaty (Pisum sativum). Vyšší obsah frakcie CNL bol v ES ako v IS. Pozitívna lineárna závislosť medzi množstvom zrážok za rok ako aj počas vegetácie bola zaznamenaná nielen medzi obsahom TOC (r=0,914; P<0,05 a r=0,971 P<0,01), ale aj CNL (r=0,880; P<0,05 a r=0,952; P<0,05). Najstabilnejšie humusové látky boli v roku 2007, kedy bola zaznamenaná najvyššia priemerná teplota za rok aj za vegetáciu. V roku 2010 boli zaznamenané najnižšie množstvá vyextrahovaných humusových látok, pričom dominovali humínové kyseliny. Ich stabilita však na základe farebných kvocientov humusových látok a humínových kyselín bola najnižšia zo všetkých rokov. V ES boli humusové látky menej stabilizované ako v IS.

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Chromatographic characteristics (HPLC, HPSEC) of humic acids of soil fertilised with various organic fertilisers

Cited by 18 publications

References 11 publications

Humic substances and aggregate stability in rhizospheric and non-rhizospheric soil

Humic substances and aggregate stability in rhizospheric and non-rhizospheric soil

Effect of soil pollution with polycyclic aromatic hydrocarbons on the properties of humic acids

Quantity and Quality of Soil Organic Matter in Ecological and Integrated Farming System

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