Barłóg, Przemysław, and Witold Grzebisz. “Sugar Beets Fertilization With Potassium, Sodium and Magnesium — Yielding and Diagnostic Evaluation: Part I. Yield of Roots and Leaves”. Bulletin of Plant Breeding and Acclimatization Institute, no. 234 (December 31, 2004): 73–82. Accessed November 5, 2026. http://ojs.ihar.edu.pl/index.php/biul/article/view/1836.