PNEUMATIC SINGLE-GRAIN SEEDER

摘要

The invention relates to a pneumatic single-grain seeder having a seed reservoir and at least one rotatable grain-isolating element with rows of perforations that are mutually spaced apart and arranged in circles around the circumference of the grain-isolating element. In order to achieve more uniform detachment of the seeds, at the same time as avoiding clogging of the perforations, the cross-sectional shape of the perforation on the grain-isolating side of the grain-isolating element differs from that on the side of the grain-isolating element remote from the grain-isolating side, the side of the perforation opening away from the direction of rotation on the side remote from the grain-isolating side is parallel to and/or has a contour that matches the contour of the covering side of the covering device, and the contour of the perforation opening on the grain-isolating side does not decrease in the direction of the side remote from the the grain-isolating side.