TY JOUR TI FERTILIZER EFFECT OF NON-ROOT ADDITIONAL FERTILIZERS AND INTRA SOIL INTRODUCTION ON SPRING WHEAT PRODUCTIVITY AND THE GRAIN CHEMICAL COMPOSITION KW ordinary mould humus KW spring wheat KW complex fertilizers KW experiment variants KW provision number KW grain chemical composition JO Bulletin of KSAU AU Trufanova, A.A. AU Sorokina, O.A. PY 2013 IS PB Krasnoyarsk State Agrarian University