An automatic harvesting system for leaf vegetables was developed and its performance was tested in a plant growing factory. In order to apply to the trough-type hydroponics, the system consisted of a trough joint, a guideway for the carring-strip, the slice cutter, belt conveyors, a winder of the carring-strip, and so on. The harvesting method was following;
1. The carring-strip which was planted vegetables is moved by the winder.
2. The carring-strip and vegetables are inclined by the guideway.
3. Roots of vegetables are cut off with planting-pots by the slice cutter.
4. Therefore, harvestries fall and are carried by belt conveyors.
This system could harvest 1800 planting-pot·hr
-1. The result of practical test suggest that the efficiency of the system was 3-5 times as fast as harvesting speed by human labor.
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