| 摘要 |
A receptacle having an imperforate bottom has a perforated, horizontal wall spaced upwardly from the bottom and dividing the receptacle into upper and lower compartments. Tubes project through the perforated wall and extend upwardly above the upper edge of the receptacle and downwardly to the bottom of said receptacle. Lower end portions of the tubes below the horizontal wall are also perforated. The upper compartment is adapted to receive soil and the lower compartment receives excess water which evaporates through the tubes and keeps the soil moist.
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