TY JOUR TI EFFECT OF MEGAFOL AND KVANTIS BIOSTIMULANTS ON PRODUCTIVITY AND GRAIN QUALITY OF WINTER SOFT WHEAT IN KAMA REGION OF THE REPUBLIC OF TATARSTAN KW winter wheat (Triticum aestivum L.) KW Skipetr and Fotinya varieties KW plant spraying KW yield KW gluten KW Megafol and Kvantis biostimulants JO Agrobiotechnologies and digital farming AU Amirov, M.F. AU Cvetkov, T.S. AU Semenov, P.G. PY 2026 IS 4 PB Kazan state agrarian University