PROBLEM TO BE SOLVED: To provide a plant raising unit capable of finely managing a plant raising environment through arbitrarily changing from an opened condition to a shielded condition in one unit, in stable atmosphere which is equipped with an artificial lightening device or an air conditioner and is free from being influenced by an outside environment, and unitedly set with a water sprinkling device. SOLUTION: This plant growing unit 10 has an external form which has a box-like form made of a quadrangle bottom wall, 4 side walls, and a top wall. The plant growing unit is formed by setting a water supply port and a drainage port near both the ends of one side of the bottom wall 11, arranging on a bottom wall surface, a sluice 16 which has a height enough to sprinkle water at a prescribed water level, so as to surround the drainage port, bringing a part higher than the sluice of the side wall 12a arranged in a standing condition from one side of the bottom wall set with the water supply port and the drainage port to an openeable closable door 18 with a hinge 17, forming a plurality of back slit-like openings 20 which have a means changing an opening ratio from full opening to full closing, on the side wall 12b arranged in a standing condition on the back facing the door, forming a plurality of vent holes 24 on the side walls 12c and 12d arranged in a standing condition on both the sides of the door, and making at least the door and the top wall from a translucent material. COPYRIGHT: (C)2009,JPO&INPIT
