85-7-1973. Amount owed state — lien and special tax. All amounts owed to the state under any contract made under 85-7-1971 through 85-7-1975 between the district and the state of Montana establish a general obligation of the district for payment, and any amounts to be paid to the state of Montana constitute a lien upon the irrigation system of the district. All lands now within the district or added to the district are subject to a special tax or assessment under 85-7-2104 for the payment of all amounts owed to the state under the contract between the district and the state of Montana. The special tax or assessment constitutes a first and prior lien on the land against which it is levied to the same extent and with the same force and effect as taxes levied for state and county purposes.