TY JOUR TI STUDY OF THE INFLUENCE OF THE MIXING RATE OF AGRO-INDUSTRIAL WASTE ON THE AMOUNT OF PRODUCED BIOGAS KW biogas KW agricultural waste KW biogas plant KW mixing rate KW efficiency KW energy JO Agrobiotechnologies and digital farming AU Akhmetova, I.G. AU Solov'eva, O.V. AU Solov'ev, S.A. AU Shakurova, R.Z. PY 2022 IS 1 PB Kazan state agrarian University