| 摘要 |
A hydroponic grass growing unit comprises an enclosure which accommodates a plurality of horizontal seed bed trays 24 in vertically spaced rows. The floor of the enclosure has a sump 14 containing hydroponic nutrient solution. Solution can be withdrawn from the sump 14 and supplied to a plurality of spray nozzles 23 which produce a spray pattern in a plane parallel to the trays. The spray pattern for each row of trays 24 is provided by a series of nozzles above the row and the nozzles for each row are spaced horizontally and each is angularly directed toward the next adjacent one such that spray patterns from pairs of adjacent nozzles converge to form an interference pattern. <IMAGE> |
