Studies on the Precision Seeding (III)

Seed Metering System Using Bowl Type Feeder

Abstract

An accurate seed metering system for raw seeds was designed which consisted of a bowl type feeder for seed feeding and a circuit for intermittent drive of the feeder to control the timing of seed separation on a track.
The following results were obtained.
1. The conveying of seeds on the track were controlled by an electromagnetic device, and the seeds were continuously conveyed in a row on the track.
2. In an accurate metering system, the metering time was set so that it might correspond to the conveying time interval under the constant conditions.
3. Laboratory tests on the tape for a tape seeder or the belt with an adhesion tape indicated that the metering system metered seeds with less errors than either a seed plate or a belt cell types.