TY JOUR TI Efficiency of green mass cultivation of maize hybrids on the calculated background of mineral food in predvolzhye of the Republic of Tatarstan KW efficiency KW green mass KW hybrids KW yield. JO Vestnik of Kazan State Agrarian University AU Talanov, I.P. AU Karimova , L.. AU Vafina , L.. AU Huzina, G.K. PY 2017 IS 12 PB Kazan state agrarian University