Sequential chemical fractionation as a tool for accessing the organic matter in biochar

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F21%3APU144463" target="_blank" >RIV/00216305:26310/21:PU144463 - isvavai.cz</a>

Result on the web

<a href="https://www.confer.cz/nanocon/2021/4372-sequential-chemical-fractionation-as-a-tool-for-accessing-the-organic-matter-in-biochar" target="_blank" >https://www.confer.cz/nanocon/2021/4372-sequential-chemical-fractionation-as-a-tool-for-accessing-the-organic-matter-in-biochar</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.37904/nanocon.2021.4372" target="_blank" >10.37904/nanocon.2021.4372</a>

Result language

angličtina

Original language name

Sequential chemical fractionation as a tool for accessing the organic matter in biochar

Original language description

This contribution is focused on utilization of a sequential chemical fractionation method for determination of organic matter content, its distribution in biochar and the possible use of biochar as a soil conditioner in agriculture. For these purposes the optimized chemical fractionation procedure was used to reveal the content of organic matter in different biochar samples with different properties (samples with European biochar certification for usage in agriculture) which depend significantly on the temperature used during a pyrolysis of biomass residues in the process of biochar production. In parallel, these samples were also fractionated by classic alkaline extraction to obtain the so-called extractable fraction of organic matter (NOM).Biochar is one of the important soil conditioners, known for having positive effect on crop yield, soil quality, nutrient cycle and carbon sequestration due to the transfer of organic carbon from it to the soil. However, the effect depends on the properties of the biochar, its doses to the soil, but also on the properties of the soil itself. Surprisingly, some authors point to the fact that biochar does not always have a positive effect on soil, plants or microfauna. Therefore, it is necessary to perform its depth characterization to be able to predicts its role in soil and its optimal application dose.Individual fractions obtained from sequential chemical fractionation as well as NOM samples were characterized by methods of elemental analysis (determination of organic elements content), thermogravimetry (contents of ash, organic matter and moisture). The results showed that the method of sequential chemical fractionation gives higher yields of organic matter compared to classical alkaline extraction. Moreover, the obtained fractions divided according to solubility and strength of binding to residual inorganic matter of biochar can be better characterized by physical-chemical methods, which provides more detailed information abo

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

10403 - Physical chemistry

Project

<a href="/en/project/GJ20-28208Y" target="_blank" >GJ20-28208Y: Understanding the effect of biochar amendment on stability of soil organic matter–from interdisciplinary methodology to molecular-level interpretation</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

CONFERENCE PROCEEDINGS - NANOCON 2021

ISBN

978-80-88365-00-6

ISSN

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e-ISSN

—

Number of pages

6

Pages from-to

430-435

Publisher name

Neuveden

Place of publication

Brno

Event location

Brno

Event date

Oct 20, 2021

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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