TY JOUR TI THE STRUCTURE OF CYANOBACTERIAL-ALGAL FLORA AS THE INDICATOR OF THE PRIMARY SUBSTRATE DEVELOPMENT KW soil algae and cyanobacteria KW primary substrate JO Bulletin of KSAU AU Blagodatnova, A.G. AU Kulyatina, A.N. PY 2014 IS PB Krasnoyarsk State Agrarian University