TY JOUR TI AGROBIOLOGICAL BASES OF FORMING A HIGH-QUALITY CROP OF SPRING WHEAT SPECIES IN THE FOREST STEPPE OF MIDDLE VOLGA REGION KW spring wheat; emmer wheat; fertilizers; predecessors; seeding rate; varieties; productivity JO Vestnik of Kazan State Agrarian University AU Amirov, M.F. AU Shaykhutdinov, F.. AU Serzhanov, I.. AU Serzhanova, A.R. AU Aksakova, V.V. PY 2020 IS 14 PB Kazan state agrarian University