| 摘要 |
The system comprises one or more cultivation units (1), each of which comprises a tubular element (2) of opaque flexible material which is surface-treated so as to have a predetermined ratio between its absorbance and emittance, in such a way as to promote or prevent increases of its internal temperature. This tubular element (2) is laid on a horizontal support surface (G), and has apertures (3) for the introduction of the plants (P) to be cultivated. A layer of absorbent support material (12) is deposited in the tubular element (2) to function as a bed for supporting and nourishing the root systems of the plants (P). Liquids can be received, retained and diffused by capillary action in this layer in a transverse direction and in the direction of its thickness. In use, liquids (water, nutrients, etc.) are supplied to the absorbent support layer (12), without recirculation of the liquids, by means of a distributor tube (15) which extends longitudinally within the tubular element (2) adjacent the layer of absorbent material (12). The root system of the cultivated plants (P) are therefore located in the interface zone between the liquid-soaked absorbent support layer (12) and the overlying atmosphere confined within the tubular element (2). |
