TY JOUR TI THE DEPENDENCE OF THE NUTRITION ELEMENT BALANCE IN THE SYSTEM «SOIL - FERTILIZER - PLANT» ON THE FORMS OF THE NITROGEN FERTILIZERS IN THE NONCHERNOZEM REGION SOUTH CONDITIONS KW heavy-loamy gray forest soil KW nitrogen fertilizer forms KW ammonium nitrate KW calcium nitrate KW sodium nitrate KW ammonium sulfate KW ammonium chloride KW ammoniac water KW urea KW nitrogen balance KW phosphorus balance KW potassium balance JO Bulletin of KSAU AU Fadkin, G.N. AU Vinogradov, D.V. PY 2015 IS PB Krasnoyarsk State Agrarian University