Changes in Soil Humin Macromolecular Structure Resulting from Long-Term Catch Cropping DOI Creative Commons
Jerzy Weber, Elżbieta Jamroz, Lilla Mielnik

et al.

Molecules, Journal Year: 2024, Volume and Issue: 29(21), P. 5049 - 5049

Published: Oct. 25, 2024

The aim of this study was to assess the effect long-term catch crop application on structural properties humin, which is considered most recalcitrant fraction soil organic matter. Soil samples from a 30-year field experiment triticale cultivated with and without crops were analysed determine total carbon content fractional composition humic substances. Meanwhile, humin isolated bulk its elemental spectroscopic measured UV-Vis, fluorescence, 13C-CPMAS-NMR. It found that farming enhanced formation highly reactive humus substances, like low-molecular-weight fractions acids, while decreasing fraction. higher H/C O/C atomic ratios 13C-CPMAS-NMR results confirmed share oxygen-containing functional groups in rotation, also corroborating greater aliphatic nature. Under conditions our experiment, indicated residues quickly undergo decay process are transformed mainly into can potentially improve health, mineral fertilisation alone favours stabilisation sequestration carbon.

Language: Английский

Advances and challenges in humic acid production technologies from natural carbonaceous material wastes DOI
Ehsan Sarlaki, Mohammad Hossein Kianmehr, Nader Marzban

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: unknown, P. 155521 - 155521

Published: Sept. 1, 2024

Language: Английский

Citations

12
Potential of Compost and Spent Coffee Grounds as Sources of Humic-Like Substances: Extraction Modeling and Optimization by Fractional Factorial Design DOI Creative Commons
Dominik Nieweś, Kinga Marecka

ACS Omega, Journal Year: 2025, Volume and Issue: unknown

Published: April 11, 2025

Humic substances (HSs) play a crucial role in soil health and have potential applications beyond agriculture. This study evaluates the renewable raw materials such as compost from urban green waste (GWC) spent coffee grounds (SCG) sources of humic-like (HLSs), which may be an alternative to traditional resources peat, lignite, leonardite. The quantitative analysis focused on modeling optimizing efficiency ultrasound-assisted extraction acids (HLAs) function time, ultrasound intensity, extractant concentration (NaOH), temperature. Experimental points were determined based experimental matrix according fractional factorial design (FFD), obtained polynomial models evaluated using Fisher test, lack fit assessment, determination coefficients. verification with optimal values parameters demonstrated possibility extracting HLAs GWC SCG at levels 27.08 19.11%, respectively. qualitative included fulvic-like their comparison reference samples. Spectroscopic methods (UV-vis, ATR-FTIR, CP/MAS, 13C NMR) well elemental (CHNSO) used this part study. results showed presence functional groups characteristic humic (polysaccharides, phenols, alcohols, amides) molecular structure products. Additionally, they exhibited higher content nitrogen sulfur compared commercial samples, lower hydrophobicity, indicate biological activity.

Language: Английский

Citations

0
Efficient extraction and formation mechanism of fulvic acid from lignite: Experimental and DFT studies DOI
Na Li, Hang Ma, Guodong Wang

et al.

Journal of Environmental Management, Journal Year: 2024, Volume and Issue: 365, P. 121650 - 121650

Published: July 4, 2024

Language: Английский

Citations

3
Chemical and Physical Aspects of Soil Health Resulting from Long-Term No-Till Management DOI Open Access
Edyta Hewelke, Lilla Mielnik, Jerzy Weber

et al.

Sustainability, Journal Year: 2024, Volume and Issue: 16(22), P. 9682 - 9682

Published: Nov. 6, 2024

The aim of this study was to compare the long-term effects conventional tillage (CT) and no-till (NT) systems on main soil properties that determine health. research conducted in a field experiment established 1975 Chylice, central Poland, at WULS-SGGW Experimental Station Skierniewice. Soil samples collected from 0–10 10–20 cm mollic horizon Phaeozem were analysed for total organic carbon (TOC) content, fractional composition SOM spectroscopic humin, structural stability, water retention characteristics repellency (SWR). results showed NT practice almost doubled TOC layer. However, optical parameters humin indicated management promoted formation with lower molecular weight degree condensation aromatic structures. In layer, significant increase number water-resistant macroaggregates found. capacity increased by 9%, 18%, 22% 26% compared CT (certain suction) pF values 0.0, 2.0, 3.0 4.2, respectively. SWR occurs regardless cultivation method moisture equivalent greatest range found

Language: Английский

Citations

2
Changes in Soil Humin Macromolecular Structure Resulting from Long-Term Catch Cropping DOI Creative Commons
Jerzy Weber, Elżbieta Jamroz, Lilla Mielnik

et al.

Molecules, Journal Year: 2024, Volume and Issue: 29(21), P. 5049 - 5049

Published: Oct. 25, 2024

The aim of this study was to assess the effect long-term catch crop application on structural properties humin, which is considered most recalcitrant fraction soil organic matter. Soil samples from a 30-year field experiment triticale cultivated with and without crops were analysed determine total carbon content fractional composition humic substances. Meanwhile, humin isolated bulk its elemental spectroscopic measured UV-Vis, fluorescence, 13C-CPMAS-NMR. It found that farming enhanced formation highly reactive humus substances, like low-molecular-weight fractions acids, while decreasing fraction. higher H/C O/C atomic ratios 13C-CPMAS-NMR results confirmed share oxygen-containing functional groups in rotation, also corroborating greater aliphatic nature. Under conditions our experiment, indicated residues quickly undergo decay process are transformed mainly into can potentially improve health, mineral fertilisation alone favours stabilisation sequestration carbon.

Language: Английский

Citations

1