Abstract: Combined farm machine performing all of the seeding operations in one pass, comprising: a frame with a three-point attachment for the connection to the tractor and a hydraulic pump; several soil rippers; a roller for the macro- and microtillage of soil; a mechanical hopper seeder with rotating devices, from which several tubular seeding members project; several spring harrows and a levelling blade or door, which machine also includes a ploughing roller for the differentiated tillage of the soil, having several annular ribbings projecting in the same number as the seeding members and aligned therewith, the ploughing roller being rotated by motor.