| 摘要 |
<p>A plant-growth trough (1, 2, 3) for earthless growing of plants in planting sacks or growth plates (9) in which the trough (1, 2, 3) consists of sections restricted by walls (10) perpendicular to the longitudinal direction of the trough, each individual section having at least one drainage (4, 5) determining the liquid level in the section and communicating with a discharge channel separated from the trough. The discharge channel is constituted by a trough extending longitudinally of the growth trough, the bottom (6) of which is positioned at a lower level relative to the bottom (2) of the growth trough, the growth trough and the discharge channel having a common wall (3) through which the drainage openings of the growth trough are bored. The growth trough and the discharge channel may be provided integrally as an extruded profile sealed at its ends by walls (10) having nipples opposite the discharge channel for connection (11) with a discharge channel of a similar trough or for drainage of liquid. When mounted on a plane surface the growth trough (1, 2, 3) is supported at its end side by the discharge channel and at its other side by a supporting frame (8).</p> |
