Potato fertilizing, sowing and film-paving combined operation machine

The utility model discloses a potato fertilizing, sowing and film-paving combined operation machine comprising a rack, a seed arranging mechanism, a power transmission system, a fertilizing mechanism, a film paving mechanism and a soil covering mechanism. The rack is provided with the seed arranging mechanism, the power transmission system, the fertilizing mechanism, the film paving mechanism and the soil covering mechanism in sequence from the front part to the rear part; and the combined operation machine also comprises a trickle irrigation mechanism and a ridging mechanism which are arranged on the rack between the fertilizing mechanism and the film paving mechanism in sequence from the front part to the rear part. The potato fertilizing, sowing and film-paving combined operation machine has the advantages that a trickle irrigation bracket, a ridging machine and a ridging former are additionally arranged, so that the ridge is heightened for sowing, and the ground ridge soil is soft; in addition, three surf