Abstract: An automatic transplanter utilizes relatively simple mechanical structure to so securely engage the root-bound plug of a seedling that the plug and seedling may be rapidly (a) lifted out of its small germination compartment, (b) horizontally transported to correct vertical register with its newly assigned soil-filled and dibbled larger compartment, and (c) accurately positioned in and discharged into the dibbled cavity. An illustrative relatively short two-second cycle is described wherein plural seedlings are thus concurrently transplanted, for each such cycle, from individual small compartments on a first periodically advanced conveyor of a two-dimensional array of germinated seedlings to correct individual larger compartments on a second conveyor that is also periodically advanced, but at a recurrence rate and incremental advance which differ from that of the first conveyor.

Abstract: A seeding machine has a drum and roller urged together to define a seed trough. Bristles close one end of the trough and a hopper adjacent that end feeds a continuous supply of seeds to the trough. The seeds flow along the length of the trough and are discharged at the opposite end of the trough which is open. A funnel collects the discharged seeds and returns them to the hopper. The drum is provided with a series of axially extending rows of holes which are coupled to a vacuum source as each row passes through the tumbling seeds in the trough. A single seed is attracted to each hole and is carried by the drum to a discharge location where the hole in question is disconnected from the vacuum source and instead connected to a source of pressure which then acts to eject the seed from the drum.