%0 Journal Article %T METHOD OF CALCULATION OF CARBON DIOXIDE EMISSION BY MACHINE-TRACTOR UNITS IN TECHNOLOGICAL OPERATIONS, TAKING INTO ACCOUNT THE INFLUENCE OF THE PARAMETERS OF THE UNITS ON THE FORMED CROP OF GRAIN CROPS %A Khafizov, K.. %A Khafizov, R.. %A Nurmiev, A.A. %K carbon dioxide, machine-tractor unit, ecology, technological operation, optimization of parameters, optimization criterion %J Vestnik of Kazan State Agrarian University %D 2022 %N 17 %P 6 %I Kazan state agrarian University