Articles | Volume 22, issue 12
https://doi.org/10.5194/bg-22-2803-2025
https://doi.org/10.5194/bg-22-2803-2025
Research article
 | 
19 Jun 2025
Research article |  | 19 Jun 2025

Effects of basalt, concrete fines, and steel slag on maize growth and toxic trace element accumulation in an enhanced weathering experiment

Jet Rijnders, Arthur Vienne, and Sara Vicca

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This preprint is open for discussion and under review for SOIL (SOIL).
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Cited articles

Abdalqadir, M., Hughes, D., Rezaei Gomari, S., and Rafiq, U.: A state of the art of review on factors affecting the enhanced weathering in agricultural soil: strategies for carbon sequestration and climate mitigation, Environ. Sci. Pollut. R., 31, 19047–19070, https://doi.org/10.1007/s11356-024-32498-5, 2024. 
Aihemaiti, A., Gao, Y., Meng, Y., Chen, X., Liu, J., Xiang, H., Xu, Y., and Jiang, J.: Review of plant-vanadium physiological interactions, bioaccumulation, and bioremediation of vanadium-contaminated sites, Sci. Total Environ., 712, 135637, https://doi.org/10.1016/j.scitotenv.2019.135637, 2020. 
Amann, T., Hartmann, J., Struyf, E., de Oliveira Garcia, W., Fischer, E. K., Janssens, I., Meire, P., and Schoelynck, J.: Enhanced Weathering and related element fluxes – a cropland mesocosm approach, Biogeosciences, 17, 103–119, https://doi.org/10.5194/bg-17-103-2020, 2020. 
Anda, M., Shamshuddin, J., and Fauziah, C. I.: Improving chemical properties of a highly weathered soil using finely ground basalt rocks, Catena, 124, 147–161, https://doi.org/10.1016/j.catena.2014.09.012, 2015. 
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A mesocosm experiment was set up to investigate how maize responds to the application of basalt, concrete fines, and steel slag, using a dose–response approach. Biomass increased with basalt application but did not change with concrete fines or steel slag, except for increased tassel biomass. Mg, Ca, and Si generally increased in the crops, whereas toxic trace elements remained unaffected or even decreased in the plants. Overall, crops were positively affected by the application of silicate materials.
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