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Articles | Volume 11, issue 2
Articles | Volume 11, issue 2
https://doi.org/10.5194/soil-11-899-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/soil-11-899-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 11, issue 2
Original research article
 | 
30 Oct 2025
Original research article |  | 30 Oct 2025

Organic-matter-mediated leaching of alkalinity in limed acid soils is affected by dissolved organic carbon adsorption and soil structure

Hannah Van Ryckel, Lynn Van Aelst, Toon van Dael, and Erik Smolders

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Short summary
Soil acidity below the plow layer harms crops and is difficult to correct with surface lime applications. Adding organic matter may help lime move deeper, but its effectiveness remains uncertain. We set up column leaching experiments to identify the mechanisms of subsurface liming. We found that combining lime with organic amendments can improve deeper soil conditions, but only in soils that do not strongly retain organic carbon. These insights can help develop better soil management strategies.
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