| 摘要 |
A water-retaining enclosure is formed around a plant (10) by joining the ends (18) of a wall (12) of flexible, water-impervious material, so as to form a circle around the plant, the wall then being inserted into the ground with a desired height (16) of the wall projecting above the ground. The wall has projections (20, 30, 32, 40) at intervals on a first side (21) and recesses (22, 31, 42) on the other or second side (19) to engage at least some of said projections for sealingly securing opposite end portions of the wall together. |
