TY JOUR TI Productivity and photosynthetic activity of potatoes depending on the duration and depth of planting KW potato KW variety KW planting period KW planting depth KW yield KW tuber quality KW starch KW photosynthetically active radiation. JO Agrarian Bulletin of the AU Vasiliev, A.A. AU Gorbunov, A.K. PY 2020 IS 195 PB Ural State Agrarian University