01227nam a2200157 a 450000100080000000500110000800800410001902000180006010000450007824500570012326000140018030000090019452008220020365300160102565300280104110045472014-11-05       1974    bl uuuu      00u1 u    #d  a3-9800030-2-71 aFEDERAL AGENCY FOR ECONOMIC COOPERATION.  aAgricultural mechanisationbcosts and profitability.  aBFEc1974  a73p.  aIntroduction; Costs of agricultural machinery: methods of grouping the costs, the costs according to their origin from technical requirements, costs according to the relation between the change of the costs and the annual use of the machine, costs according to the possibilities of allocation, depreciation, aspects involved, value to be depreciated, method to be followed, working life of a machine, interest, housing and insurance, repair and maintenence costs, running costs, labour and supervision; Compilations of the costs of agricultural machinery: approach to be foloowed, costs data for agricultural machinery, costs of agricultural machinery operations, calculation of costs for data other than average, special characteristics for operating in a machinery sharing scheme, share of fixed costs: fair charge.  aAgricultura  aMecanização agrícola