TY JOUR TI PRODUCTIVITY OF VARIOUS TYPES OF SPRING WHEAT DEPENDING ON THE BACKGROUND OF NUTRITION AT DIFFERENT SEEDING RATES IN THE CONDITIONS OF THE PRE-KAMA ZONE OF THE REPUBLIC OF TATARSTAN KW spring wheat KW spelt wheat KW field germination KW biological resistance KW variety KW seeding rate KW fertilizer KW yield JO Agrobiotechnologies and digital farming AU Shaykhutdinov, F.. AU Amirov, M.F. AU Serzhanov, I.. AU Garaev, R.I. AU Semenov, P.G. PY 2023 IS 2 PB Kazan state agrarian University