Spraying device for the application of spraying liquid, in particular on agricultural land, comprising: - at least one storage tank (52; 52a; 52b; 52c) for at least one spray liquid, - at least one receiving element for receiving and transferring the spray liquid - a pressure generating member for generating a delivery pressure for delivering the spray liquid from the storage tank (52; 52a; 52b; 52c) to the receiving element, - one or more valve units arranged between the storage tank (52; 52a; 52b; 52c) and the receiving element, - a spray bar arrangement with spray nozzles for distributing the spray liquid, wherein the opening and closing times of the one and/or the several valve units can be controlled and/or regulated automatically by means of pulse width modulation dependent on a defined quantity of liquid by means of a control means, characterised in that a) the receiving element is formed by an additional tank, preferably forming a mixing chamber, and in that at least one flow measuring device is arranged downstream of the one or more valve units, and in that the opening and closing times of the one or more valve units can be automatically controlled and/or regulated by means of the control means by means of pulse width modulation dependent on a quantity of liquid detected by means of the flow measuring device, and/or b) a fill level measuring device is assigned to the at least one storage tank (52; 52a; 52b; 52c) and/or the receiving element, and in that the opening and closing times of the one or more valve units can be automatically controlled and/or regulated by means of the control means by means of pulse width modulation dependent on a fill level detected by means of the fill level measuring device. - at least one storage tank (52; 52a; 52b; 52c) for at least one spray liquid, - at least one receiving element for receiving and transferring the spray liquid - a pressure generating member for generating a delivery pressure for delivering the spray liquid from the storage tank (52; 52a; 52b; 52c) to the receiving element, - one or more valve units arranged between the storage tank (52; 52a; 52b; 52c) and the receiving element, - a spray bar arrangement with spray nozzles for distributing the spray liquid, wherein the opening and closing times of the one and/or the several valve units can be controlled and/or regulated automatically by means of pulse width modulation dependent on a defined quantity of liquid by means of a control means, characterised in that a) the receiving element is formed by an additional tank, preferably forming a mixing chamber, and in that at least one flow measuring device is arranged downstream of the one or more valve units, and in that the opening and closing times of the one or more valve units can be automatically controlled and/or regulated by means of the control means by means of pulse width modulation dependent on a quantity of liquid detected by means of the flow measuring device, and/or b) a fill level measuring device is assigned to the at least one storage tank (52; 52a; 52b; 52c) and/or the receiving element, and in that the opening and closing times of the one or more valve units can be automatically controlled and/or regulated by means of the control means by means of pulse width modulation dependent on a fill level detected by means of the fill level measuring device. a) the receiving element is formed by an additional tank, preferably forming a mixing chamber, and in that at least one flow measuring device is arranged downstream of the one or more valve units, and in that the opening and closing times of the one or more valve units can be automatically controlled and/or regulated by means of the control means by means of pulse width modulation dependent on a quantity of liquid detected by means of the flow measuring device, and/or b) a fill level measuring device is assigned to the at least one storage tank (52; 52a; 52b; 52c) and/or the receiving element, and in that the opening and closing times of the one or more valve units can be automatically controlled and/or regulated by means of the control means by means of pulse width modulation dependent on a fill level detected by means of the fill level measuring device.