Market and technology indicator. Why potatoes are cheaper in Ukraine than in Russia

In Russia, there is a shortage of potatoes, which Georgians are making money on. Belarusians and Kazakhs cannot keep up. President of Belarus Alexander Lukashenko is slowing down imports, fearing a price spike. And Kazakh President Kassym-Jomart Tokayev has banned the export of potatoes altogether. LIGA.net investigated how the potato situation in Ukraine looks against this background?
Potatoes have risen in price again in Russia. After April 20, the retail price of a kilogram of "potatoes" in Russian stores and city markets exceeded 100 rubles (53 hryvnia). In Kaliningrad (formerly Koenigsberg), supermarkets sell potatoes for 130 rubles, and imported and young potatoes for 150 rubles per kilogram. This is the equivalent of 65 and 75 hryvnias.
For comparison, in neighboring Lithuania and Poland, the price of potatoes is half as much. In these NATO countries, they are sold for 0.4 euros and 2.5 zlotys per kilogram. In Russian money, this is 38 and 55 rubles, respectively.