The invention relates to a pneumatic single-grain seeder having a plurality of seed meters (1) for accommodating isolating devices (3), which are rotatably arranged and exposed to a pressure difference between the interior (21) of the isolating devices and the exterior (22) of the isolating devices. A plurality of holes (17-20) used to take up seeds is arranged in the device (3). The isolating device (3) is formed by a pair of isolating plates (4, 5) connected to each other at the outer edge (38, 39) of the isolating plates, which isolating plates are arranged at an offset to each other in a tangential direction in order to produce a spread seed row and are associated with separate outlets (23, 24) for leading away the seeds from the seed meter (1) in the direction of a seed coulter.
