PreprintArticleVersion 1Preserved in Portico This version is not peer-reviewed
Biochar Particle Size and Texture – Parameters Affecting Its Agronomical Potential through the Effect on the Leaching of Organic Molecules and Macro- and Microelements
Version 1
: Received: 19 January 2024 / Approved: 23 January 2024 / Online: 23 January 2024 (06:49:49 CET)
How to cite:
Sovova, S.; Mravcova, L.; Porizka, J.; Kubikova, L.; Kalina, M. Biochar Particle Size and Texture – Parameters Affecting Its Agronomical Potential through the Effect on the Leaching of Organic Molecules and Macro- and Microelements. Preprints2024, 2024011644. https://doi.org/10.20944/preprints202401.1644.v1
Sovova, S.; Mravcova, L.; Porizka, J.; Kubikova, L.; Kalina, M. Biochar Particle Size and Texture – Parameters Affecting Its Agronomical Potential through the Effect on the Leaching of Organic Molecules and Macro- and Microelements. Preprints 2024, 2024011644. https://doi.org/10.20944/preprints202401.1644.v1
Sovova, S.; Mravcova, L.; Porizka, J.; Kubikova, L.; Kalina, M. Biochar Particle Size and Texture – Parameters Affecting Its Agronomical Potential through the Effect on the Leaching of Organic Molecules and Macro- and Microelements. Preprints2024, 2024011644. https://doi.org/10.20944/preprints202401.1644.v1
APA Style
Sovova, S., Mravcova, L., Porizka, J., Kubikova, L., & Kalina, M. (2024). Biochar Particle Size and Texture – Parameters Affecting Its Agronomical Potential through the Effect on the Leaching of Organic Molecules and Macro- and Microelements. Preprints. https://doi.org/10.20944/preprints202401.1644.v1
Chicago/Turabian Style
Sovova, S., Leona Kubikova and Michal Kalina. 2024 "Biochar Particle Size and Texture – Parameters Affecting Its Agronomical Potential through the Effect on the Leaching of Organic Molecules and Macro- and Microelements" Preprints. https://doi.org/10.20944/preprints202401.1644.v1
Abstract
Biochar is a carbon-rich material that recently received attention due to its increasing agronomical potential. The agricultural utilization of biochar relates to its potential to act in the soil as a soil conditioner, nevertheless, the complex information on the direct dependence of biochar physical properties (texture, particle size) and corresponding leaching and availability of organic molecules (e.g. the polycyclic and heterocyclic organic compounds) and inorganic mineral salts (based on micro– and macroelements) are still not consistent. These aspects were addressed in our study. A multi-elemental analysis (ICP-OES) was used to access the information on the aqueous-extractable and total contents of inorganic macro- and macroelements in used commercial biochar samples (purchased from Sonnenerde GmbH, Novoterrra Sonnenerde GmbH, Biouhel.cz, s.r.o.). Potassium (K) was identified as the major macroelement, responsible for alkaline pH and the conductivity of biochar extract. Our results indicate an indirect relation between the size fraction of biochar and the content of extractable K, sodium (Na), and calcium (Ca) and a direct relation with the contents of phosphorus (P) and magnesium (Mg). As the total determined amounts of inorganic elements were significantly higher compared to aqueous-extractable amounts, we believe it could indicate the potential for repeated release to the surrounding soil. These findings were also confirmed by the analysis of biochar samples obtained after the cultivation (duration of 2 years) in selected representative soil samples from the Czech Republic (Cambisol, Fluvisol, Regosol, Chernozem). Moreover, gas chromatography (GC) coupled with mass spectroscopy (MS) was further used to reveal the concentrations of available polycyclic aromatic and heterocyclic compounds in biochar samples. The detected concentration of these types of organic compounds were far below the certified limits. We believe our in-depth analysis could provide the necessary insight into the description of biochar mineral content, its connection to biochar texture, corresponding physicochemical properties and potential availability to leach nutrients to the soil. These findings could help in further assessment of the potential applications of biochar in modern agriculture as a soil conditioner.
Chemistry and Materials Science, Physical Chemistry
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
