On the Development of a Sooter Type Taro Planter and the Planting Position of Taro Seed.

概要

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An experimental shooter-type planter to be applied for the planting of taro-seeds was developed, with the examination of planting position of the device, performed. The results obtained are as follows.1) The proper planting rate of the individual seed (Variety: Akamedaikichi) was 92-82% under the planting speed of 0.17-0.37m/s, respectively. The planting rate at the diagonal position was 4-14% under the planting speed of 0.17-0.37m/s, respectively.2) Judging from the operation load for an assistant operator, the proper planting speed was under 0.37m/s.3) The proper planting rate of the individual seed (Variety: Ishikawawasemaru) was 95-88% under the planting speed of 0.17-0.37m/s. The planting rate at the diagonal position was 2-5% under the planting speed of 0.17-0.37m/s, respectively.4) The planting space and the planting depth were 300±58mm 120±25mm in case of the two varieties, respectively.5) The planting rates of the two varieties were obtained as 91% (Akamedaikichi) and 93% (Ishikawawasemaru) under the proper planting speed of 0.27m/s. The working efficiency was 1.16h/10a, which was about 5 times higher as compared with the customary operation. The practical usage of this machine was well recognized.
日本農作業学会の論文