TY JOUR TI EFFICIENCY OF APPLICATION OF ORGANOMINERAL FERTILIZERS IN ORDER OF HEAVY METALS INACTIVATION WHEN GROWING POTATOES IN SAMARA VOLGA STEPPE ZONE KW soil KW fertilizers KW manure KW potatoes KW metals KW coefficient KW yield JO Bulletin Samara State Agricultural Academy AU Chernyakova, G.I. AU Trots, N.M. AU Kostin, Y.V. PY 2020 IS 5 PB Samara State Agricultural Academy