Bertáné Szabó, E., Berényi, S., & Loch, J. (2009). The possibility of use of the 0,01 M CaCl2 and Baker- Amacher extractants for the determination of plantavailable potassium. Acta Agraria Debreceniensis, 36, 7-15. https://doi.org/10.34101/actaagrar/36/2787