The present invention relates to a method for applying an agrochemical mixture to a working area (2) of a field (1) using a vehicle (3) moving on the field (1). Thereby, a solid fertilizer (6) is spread on the working area (2) using a fertilizer spreading device (4) mounted on the vehicle (3; 3a) and a liquid fertilizer additive (7) is sprayed on the working area (2) using a field sprayer (5), mounted on the vehicle (3) separately from the fertilizer spreading device (4). Therein, the liquid fertilizer additive (7) is prevented from coming into contact with surfaces of the fertilizer spreading device (4), which also come into contact with the solid fertilizer (6). Moreover, the invention relates to a vehicle (3) for applying an agrochemical mixture to a working area (2) of a field (1) while moving on the field (1).