The invention relates to a method (100) for controlling a dispensing unit and/or an agricultural work machine having said dispensing unit, wherein the dispensing unit has at least one nozzle element, wherein the nozzle element is designed to dispense a fluid, which in particular comprises a pesticide or fertilizer, comprising the following steps: detecting (130) a parameter of the dispensed fluid; and controlling (120) the dispensing unit and/or the agricultural work machine as a factor of the detected parameter of the dispense fluid, in order to achieve a defined fluid characteristic of the dispensed fluid.