CULTIVATION BED, MULTIPLE CULTIVATION BEDS IN COMBINATION WITH CULTIVATION BEDS, METHOD FOR MAKING MULTIPLE CULTIVATION BEDS, AND PLANT FACTORY USING MULTIPLE CULTIVATION BEDS
PROBLEM TO BE SOLVED: To provide a cultivation bed for effectively blocking the light to a liquid surface, preventing massive generation of algae in a liquid, and hardly damaging the root of a seedling. ! SOLUTION: A cultivation bed 100 includes: a first projecting portion 9 projecting from a side surface 1 provided on a side surface 3 and a side surface 6 to a predetermined thickness among the thicknesses of the cultivation bed 100; a second projecting portion 11 provided in the periphery of a side surface 10 and projecting from a second surface to a thickness except for a predetermined thickness among the thicknesses of the cultivation bed 100; a notch 12 provided in a recessed part 4 and penetrating the cultivation bed 100; a third projecting portion 14 provided in the periphery of the recessed part 4 and a projecting part 5 of a side surface 13 and projecting from a first surface 1 to a predetermined thickness among the thicknesses of the cultivation bed 100; and a fourth projecting portion 16 provided in the periphery of the recessed part 4 and the projecting part 5 of a side surface 15 and projecting from the second surface to the thickness except for a predetermined thickness among the thicknesses of the cultivation bed 100. ! COPYRIGHT: (C)2014,JPO&INPIT
