A fallen crop vacuum that has: a vacuuming unit (15) to vacuum up a crop that has fallen to a ground and obtain a vacuumed crop, vacuuming up the fallen crop in a set vacuum volume (100) between the ground and the vacuum a vacuum intake (11) to take in a fallen crop that is to be vacuumed up a vacuum outlet (12) to let out a crop that has been vacuumed up a vacuum pipe (1112) to guide the crop from the vacuum intake (11) to the vacuum outlet (12).