TY JOUR TI Bioenergetic assessment of eggplant seed production KW eggplant KW variety KW seeds KW energy efficiency coefficient KW total energy of the crop KW total energy costs JO Agrarian Bulletin of the AU Gulin, A.V. AU Kigashpaeva, O.P. AU Machulkina, V.A. PY 2023 IS 233 PB Ural State Agrarian University