TY JOUR TI ROLE OF SEPARATE ELEMENTS OF NURSERY FARMING TECHNOLOGY IN OBTAINING QUALITY HOP PLANTING KW stem cuttings KW annual seedlings KW green manure KW mulching materials KW mineral fertilizers KW soil herbicides JO Vestnik of Kazan State Agrarian University AU Korotkov, A.V. AU Korotkova, Z.P. AU Pushkarenko, N.N. AU Prokop'ev, V.P. PY 2020 IS 14 PB Kazan state agrarian University