PROBLEM TO BE SOLVED: To provide a seeding device that reduces the number of man-hours of seeding work having much room for improvement on labor saving in the hydroponic culture, eventually reduces a manufacturing cost.SOLUTION: Two pieces of perforated plate with multiple through-holes arranged in a grid pattern in the same position are held in the state where the position of each through-hole may not match. A seed supply member comprising seed-dropping through-holes of the same pitch as the through-holes is made to slide on the upper side perforated plate, and a fixed quantity of seed is temporarily stored in the through-hole of the upper side perforated plate. Then, the lower side perforated plate is horizontally moved so that the position of each through-hole of the upper side perforated plate and the lower side perforated plate may be matched with each other in the state where a culture medium provided with seed-storing bottomed holes of the same array as the upper side perforated plate in the lower part of a lower side perforated plate is arranged so that the position between the seed-storing bottomed hole and the through-hole of the upper side perforated plate may be matched with each other. Thereby, the seed passes the through-hole of the lower side perforated plate and drops in the seed-storing bottomed hole by own weight.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2017,JPO&INPIT【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の、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枚の多孔板を、それぞれの貫通孔の位置が一致しない状態に保持し、上側の多孔板に上を、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、上側の多孔板の貫通孔に一定数量の種子を一時的に貯留する。その後、下側の多孔板の下部に上側の多孔板と同一の配列の種子収納用有底孔を設けた培地を、種子収納用有底孔と上側の多孔板の貫通孔の位置が一致するように配した状態で、上側の多孔板と下側の多孔板のそれぞれの貫通孔の位置が一致するように下側の多孔板を水平方向に移動する。これによって種子は自重により、下側の多孔板の貫通孔を通過して、種子収納用有底孔に落下する。【選択図】図1
