| 摘要 |
A seedling growth enhancing device (11) is disclosed which takes the form of an elongated tubular shell formed from three shell segments each having a radius of curvatures less than the effective radius of curvature of the tubular shell. The device (11) is thermoformed from thermoplastic and includes a flexible hinge (15, 16) joining two common edges of the three shell segments (12-14). The third common edges are formed with male and female snapping members (19, 21) enabling the device to be formed around a seedling (5) and snapped into place.
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