A control method for actuating a combined movement of a boom and an implement in a work vehicle powered by a motor, wherein actuating the boom and the implement occurs by means of a joystick controlled by a user, a movement of the joystick in a predetermined control area according to a first preset direction (y) causing the actuation of the boom by first hydraulic actuating means and a movement of the joystick in said control area according to a second preset (x) direction causing the actuation of the implement by second hydraulic actuating means, wherein the first hydraulic actuating means and the second hydraulic actuating means each include an hydraulic cylinder operatively connected respectively to the boom and the implement, and a respective first and second open centre directional solenoid valve (18,20) whose opening degree is adapted to control the flow of a working fluid to the respective hydraulic cylinder, the rate of actuation of the boom being controlled by the opening degree of the first open centre directional solenoid valve by means of a driving current (Sdc) thereof as a function of a first component of the position of the joystick along said first preset direction (y) in the control area, and the rate of actuation of the implement being controlled by the opening degree of the second open centre directional solenoid valve by means of a driving current thereof as a function of a second component of the position of the joystick along said second preset direction (y) in the control area, the control method being characterized in comprising the steps of: a) acquiring a signal (Sj) or data indicative of a current position of the joystick in said control area; b) acquiring a signal (Se)or data indicative of a current rotational speed of the motor; and c) applying a correction factor to a nominal driving current of the second open centre directional solenoid valve, corresponding to the second component of the current position of the joystick along said second preset direction in the control area, based on a predetermined reference model of the correction factor, indicative of a nominal relation between the first component of the current position of the joystick along said first preset direction (y) in the control area, the rotational speed of the motor, and said correction factor. wherein actuating the boom and the implement occurs by means of a joystick controlled by a user, a movement of the joystick in a predetermined control area according to a first preset direction (y) causing the actuation of the boom by first hydraulic actuating means and a movement of the joystick in said control area according to a second preset (x) direction causing the actuation of the implement by second hydraulic actuating means, wherein the first hydraulic actuating means and the second hydraulic actuating means each include an hydraulic cylinder operatively connected respectively to the boom and the implement, and a respective first and second open centre directional solenoid valve (18,20) whose opening degree is adapted to control the flow of a working fluid to the respective hydraulic cylinder, the rate of actuation of the boom being controlled by the opening degree of the first open centre directional solenoid valve by means of a driving current (Sdc) thereof as a function of a first component of the position of the joystick along said first preset direction (y) in the control area, and the rate of actuation of the implement being controlled by the opening degree of the second open centre directional solenoid valve by means of a driving current thereof as a function of a second component of the position of the joystick along said second preset direction (y) in the control area, a) acquiring a signal (Sj) or data indicative of a current position of the joystick in said control area; b) acquiring a signal (Se)or data indicative of a current rotational speed of the motor; and c) applying a correction factor to a nominal driving current of the second open centre directional solenoid valve, corresponding to the second component of the current position of the joystick along said second preset direction in the control area, based on a predetermined reference model of the correction factor, indicative of a nominal relation between the first component of the current position of the joystick along said first preset direction (y) in the control area, the rotational speed of the motor, and said correction factor.