TY JOUR TI THE INTENSITY OF CARBON UPTAKE BY FIELD CROPS, DEPENDING ON THE CULTIVATION TECHNOLOGY IN THE REPUBLIC OF TATARSTAN KW plants KW carbon KW photosynthesis KW CO2 KW dry matter KW yield KW direct radiation KW scattered radiation JO Vestnik of Kazan State Agrarian University AU Amirov, M.F. PY 2021 IS 16 PB Kazan state agrarian University