| 摘要 |
A bed for the cultivation of plants in a flowing nutrient comprises lengths of gulley 15 detachably joined together and preferably thermally insulated from the ground. The gullies may be enclosed in a flexible sleeve 13 held up by hoops 14 and the sleeves may be arranged side by side and connected at their ends to manifolds for circulation of nutrient and/or a chosen atmosphere, Figure 1 (not shown). <IMAGE> |
