%0 Journal Article %T THE RESULTS TO DETERMINE THE OPTIMAL VALUES OF INTERREPAIR OPERATING TIME OF TRACTORS IN THE AGRICULTURAL PRODUCTION, TAKING INTO ACCOUNT ITS EXPLOITATION LEVEL %A Khusainov, R.. %A Galiev, I.G. %K operating level, operating conditions, resource consumption, annual operating time, increasing efficiency. %J Vestnik of Kazan State Agrarian University %D 2016 %N 11 %P 3 %I Kazan state agrarian University