“Influence of the Rate and Ratios of Mineral Fertilizers on Growth, Development and Yield of Winter Wheat”. Bulgarian Journal of Soil Science, Agrochemistry and Ecology 51, no. 3-4 (December 20, 2017): 54–56. Accessed February 10, 2026. https://agriacad.eu/ojs/index.php/bjssae/article/view/1930.