Dosing plant (1) for dosing a liquid (L); the dosing plant (1) comprising at least one tank (20) for the liquid (L) ; a dispensing member (32) hydraulically connected to the tank (20) and supplied, in use, by a pump (40) electrically actuated and hydraulically connected to the tank (20) through a supply pipe (50) and to the dispensing member (32) through a dispensing pipe (52); a power supply device (60) is electrically connected to the pump (40) for the actuation thereof; a control device (70) being electrically connected to the power supply device (60) and electronically connected to the pump (40) in order to control the operation thereof; The dispensing member (32) comprises an injector (34) electrically connected to the power supply device (60) and electronically connected to the control device (70) in order to dose the liquid (L) in a calibrated manner and to optimize the use thereof.
