TY JOUR TI MINERAL NUTRITION OF SPRING WHEAT AT DIFFERENT SEEDING RATES ON GRAY FOREST SOILS OF THE KAMA REGION OF THE REPUBLIC OF TATARSTAN KW spring wheat KW yield KW seeding rate KW gluten KW plant nutrition JO Agrobiotechnologies and digital farming AU Biktagirova, E.I. AU Serzhanova, A.R. PY 2023 IS 2 PB Kazan state agrarian University