Mineral Nutrition and Fertilization of Potato Plants on Gray Forest Soil
It has been shown in experiments with potato on gray forest soil that the nutrition of this crop with ma-cronutrients and the crop response to fertilizers are largely determined by the initial supply of soil with available nutrient forms and the hydrothermal conditions during the vegetation period. Under the strong and long-lasting drought stress in 2010, plants have been short of phosphorus and potassium. Under moderate moisture deficit during the tuberization period (2012), nitrogen has been in the first minimum. Potato plants grown at the starter application of nitrogen-phosphorus fertilizer and nitrogen dressing under favorable moisture conditions (2011) had a balanced supply with nitrogen and phosphorus during the flowering and maturity stages and with nitrogen and potassium at the seedling and flowering stages