| 摘要 |
PROBLEM TO BE SOLVED: To grow organisms in natural state by forming a soil filling space within a box block body partially opened in the upper surface, and forming a communicating passage allowing the soil filling space to communicate with natural ground in the body. SOLUTION: A partitioning wall 2 is raised from the lower part of a rear wall 1a and formed in a box block body 1 opened in the upper surface. A filling space 3 and a drainage temporary storing space 4 are formed in the front and rear of the partitioning wall 2, respectively. Communicating passages 5, 5 allowing the space 3 to communicate with natural ground D are formed in the lower part of the rear wall 1a, and drainage inflow ports 6, 6 for carrying drainage into the space 4 are formed on the upper part of the rear wall 2a. Space communicating passages 9, 9 are also formed in the middle part of the partitioning wall 2 to allow the space 4 to communicate with the space 3. Soil G is filled in the space 3 and in the passage 5, and laid in the connected state with the natural ground D, and the underwater in the natural ground D is drained and discharged through the hole 6→the space 4→the hole 7→the space 3. Thus, the labor and cost for protection and management of plants can be dispensed with.
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