The vehicle for spreading liquid manure, as a self-contained vehicle or a trailer (12) on a wheeled chassis (13), has a tank (14) to hold the liquid manure and a spreader (17) linked to the tank by a pipe (15). At least one spectral analysis sensor (18), at the tank filling point (B), measures the manure, linked (19) to an evaluation unit (20). The evaluation unit has a control data link (21) to a valve (16) to set the amount of manure to be spread on the surface area.
