TY JOUR TI INFLUENCE OF PARTICULAR AGROTECHNICAL METHODS ON PRODUCTIVITY AND QUALITY OF SPRING WHEAT SEEDS IN THE VOLGA AREA OF THE REPUBLIC OF TATARSTAN KW spring wheat KW variety KW seeding rate KW germination KW productivity KW seed quality. JO Vestnik of Kazan State Agrarian University AU Ganiev , A.. AU Galiev, F.. AU Shaykhutdinov, F.. AU Serzhanov, I.. PY 2015 IS 10 PB Kazan state agrarian University