PROBLEM TO BE SOLVED: To reduce man-hours and further reduce production cost by proposing a configuration for reducing an operation error of a device for use in the sowing work having a large room for improvement on the labor saving in the hydroponic culture.SOLUTION: A sowing device is characterized in that a culture medium is arranged in which recesses for receiving seeds are provided in a grid pattern under 2-perforated plates arranging multiple through-holes in the grid pattern in the same position, and a seed supply member comprising seed-dropping through-holes of the same pitch as the through-holes is made to slide and the position of two perforated plates is operated, and thereby the seeds are input into the recesses of the culture medium. An enlargement part is provided in the lower part of the seed-dropping through-holes of the device to thereby prevent the clogging of the seeds. A guide having flexibility is provided in a portion coming in contact with the perforated plates to thereby prevent the destruction of the seeds.SELECTED DRAWING: Figure 8【課題】 水耕栽培において、省力化についての改善の余地が大きい、播種作業に用いられる装置の作動エラーを削減する構成を提案し、工数の削減、ひいては製造コストの低減を図る。【解決手段】 同一の位置に複数の貫通孔を碁盤目状に配列した２枚の多孔板の下に、種子を収納するための凹部を碁盤目状に設けた培地を配し、貫通孔と同じピッチの種子投下用貫通孔を具備した種子供給部材を摺動させ、二つの多孔板の位置を操作することにより、培地の凹部に種子を投入する装置の、種子投下用貫通孔の下部に拡大部を設けて、種子の詰まりを抑制し、多孔板と接する部分に可撓性を有するガイドを設けて、種子の損壊を抑制する。【選択図】図８
