The potential acidity corresponds to the sum of the protons in the soil solution which can be desorbed with a 0.01 M CaCl2 solution on a short-term basis (ÖNORM L1083).
CITATION STYLE
Öhlinger, R., Kandeler, E., Gerzabek, M., Insam, H., & Illmer, P. (1996). Methods in Soil Chemistry. In Methods in Soil Biology (pp. 396–416). Springer Berlin Heidelberg. https://doi.org/10.1007/978-3-642-60966-4_29
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