TY JOUR TI THE CORRELATION BETWEEN AGROCHEMICAL PROPERTIES AND THE SOIL CONTAMINATION LEVEL KW correlation and the pleiades KW soil KW humus KW pH KW heavy metals KW natural radionuclides JO Bulletin of KSAU AU Cherentsova, A.A. AU Mayorova, L.P. PY 2016 IS PB Krasnoyarsk State Agrarian University