A motor pump 1, for drawing water from a supply reservoir B to be sprayed over a plot of land by means of an
irrigation system I, comprising a pumping unit 2 having a motor 3, a pump 4, driven by the motor 3, and a drawing tube 5, movable and insertable by immersion into the supply reservoir B to draw water and introduce it under pressure, as a result of the action of the pump 4, into the
irrigation system I. The motor pump further comprises a first frame 6 having a supporting base 7 having the pumping unit 2
on board at the top, and a second frame 8 having a pair of wheels 9 at the bottom to allow movements of the second frame 8 over the ground, said second frame 8 being reversibly movable, under the action of movement means 10, from an engagement position, in which the first frame 6 is raised
on board the second frame 8 so as to render the two frames 6,8 solidly joined and transportable by means of the pair of wheels 9, to a disengagement position, in which the first frame 6 is disconnected from the second frame 8 so as to allow a separation of the second frame 8 from the first frame 6, leaving the latter with the supporting base 7 resting on the ground.