La mecanización agraria en las Islas Baleares durante el periodo de la autarquía (1946-1960)

The study of the agrarian mechanization in the Balearic Islands has been initiated in base to unpublished documentation of the registration of tractors between 1946 and 1973. The period analyzed itself center in the phase of economic autarchy (1946-1960) and some are presented fi rst results on the incorporation of tractors in a phase of incipient modernization of the insular agriculture, that has changed the systems of traditional type by other more industrial in the last fi fty years.