| 摘要 |
Plant growth and development apparatus comprises a plant support member 8 comprising a layer of material 12 having apertures formed therein for directly engaging and supporting plants above the root portions thereof and exposing substantially all of the root portions thereof; and nutrient spraying apparatus comprising a unit 28 for providing a spray of air and liquid nutrient at venturi nozzles 30, the spray impinging directly on the exposed root portions of the plants in accordance with a desired timing cycle. <IMAGE> |
