| 摘要 |
PCT No. PCT/JP95/00388 Sec. 371 Date Nov. 15, 1996 Sec. 102(e) Date Nov. 15, 1996 PCT Filed Mar. 9, 1995 PCT Pub. No. WO95/24119 PCT Pub. Date Sep. 14, 1995A multistage plant culture method and apparatus for carrying out the method are disclosed. Culture beds constituted by rooting medium contained in culture containers and initially containing plant seedlings are moved, in order; from an uppermost level to a lowermost level after the plants have been grown at each level for a predetermined period. After cropping, the culture bed at the lowermost level is removed, and a new culture bed containing seedlings is placed at the vacant uppermost level. This sequence is repeated. The culture containers have a predetermined length and are supported on a plurality of support means arranged vertically at different heights. A culture container lift unit includes culture container holding means capable of movement towards or away from the culture containers, and also capable of holding the containers and moving them up or down to facilitate their movement between the different levels. The invention thus enables continuous cropping to be achieved with increased yield and an increased amount of sunlight to reach the plants, particularly at the lower levels. The invention also lends itself to automation, to the reduction of any requirement of manual operation, and to large-scale culture. |
