Balla Kovács, Andrea. 2010. “Studies of the Effects of N Fertilizers and Microbion UNC Biofertilizer on Microelement Content of Horseradish (Armoracia Macrocarpa)”. Acta Agraria Debreceniensis, no. 38 (November): 41-45. https://doi.org/10.34101/actaagrar/38/2758.