%0 Journal Article %T MATHEMATICAL MODEL OF MINERAL NUTRITION OF SPRING WHEAT ON THE RESULTS OF LONG-TERM RESEARCH OF AGRARIAN UNIVERSITY OF NORTHERN URALS %A Eryomina, D.V. %K mathematical model, regression statistics, correlation coefficient, approximation co-efficient, statistical processing, database, planned productivity, mineral fertilizers, spring wheat, leached chernozyom %J Bulletin of KSAU %D 2017 %N %P 5 %I Krasnoyarsk State Agrarian University