Effect of potassium fertilizers on the contents of macronutrients and halogens in potatoes
It has been shown in a field stationary experiment that the application of increasing rates of potassium fertilizer in combination with NP decreased the content of nitrogen and phosphorus and increased that of potassium in potatoes. The application of potassium fertilizer (KCl) decreased the accumulation of fluorine in crops, but the uptake of chlorine and iodine increased significantly. The balances of fluorine and chlorine in the agrocenosis were highly positive; the balance of iodine was highly negative.