TY JOUR TI HIGH-PRODUCTIVE FODDER VARIETY “ENDAN” KW spring barley KW variety KW protein KW productivity KW grain forage KW crop structure JO Vestnik of Kazan State Agrarian University AU Blokhin, V.. AU Ganieva, I.S. AU Serzhanov, I.. AU Karimov , K.. PY 2019 IS 14 PB Kazan state agrarian University