| 摘要 |
In a seedling-interval regulation apparatus, the transport interval (t) between two adjacent seedlings (Pn, Pn+1) successively transported by a variable speed conveyer (99) is calculated by measuring a distance over which the preceding seedling (Pn) is transported between a point in time when the preceding seedling (Pn) is detected by a seedling sensor (S2) and a point in time when the succeeding seedling (Pn+1) is detected by the seedling sensor (S2). The calculated transport interval (t) between the seedlings (Pn, Pn+1) is compared with the planting interval. When the calculated transport interval (t) coincides with the planting interval, the transport speed of the variable speed conveyer (99) is maintained. When the calculated transport interval (t) does not coincide with the planting interval, the transport speed of the variable speed conveyer (99) is increased or decreased or the variable speed conveyer (99) is stopped, such that the transport interval between two adjacent seedlings (Pn, Pn+1) becomes equal to the planting interval immediately after the preceding seedling (Pn) is discharged from the variable speed conveyer (99).
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