TY JOUR TI BORACIUM FORM AVAILABILITY AND RATIO IN THE SOILS WITH DIFFERENT BORACIC SALINIZATION DEGREE IN THE OM-IRTYSH INTERFLUVE KW boracium KW boracic salinization KW forms KW particles KW sodium soil KW meadow-chernozemic soil JO Bulletin of KSAU AU Azarenko, Y.A. PY 2012 IS PB Krasnoyarsk State Agrarian University