TY JOUR TI AGRO-BIOLOGICAL FEATURES OF GROWING THE BROWN MUSTARD UNDER THE CONDITIONS OF LEFT-BANK FOREST-STEPP OF UKRAINE KW mustard KW agrobiological KW features KW morphological characteristics KW productivity JO Bulletin Samara State Agricultural Academy AU Melnik, A.V. AU Zherdetskaya, S.V. AU Shahid, A.. AU Gulyam, S.. PY 2017 IS 2 PB Samara State Agrarian University