PROBLEM TO BE SOLVED: To provide a device that causes triiron tetraoxide having magnetism to adhere to surfaces or insides of fertilizers, plant seeds, or agricultural chemicals, or to be mixed with them, causes electromagnetic force to be applied to the magnetic adducts, and supplies/sprays them to a farm land such as a rice paddy and a field.SOLUTION: A moving device for a magnetic adduct M includes: particulate magnetic adducts M.M in which a magnetic material having magnetism is given to a nonmagnetic material； a case having an input port I and an outlet port O which is provided with a moving path for moving the magnetic adducts M.M between the input port I and the outlet port O； and an electric magnet M that adsorbs the magnetic adducts M.M and moves the magnetic adducts M.M along the moving path by moving a magnetic field.SELECTED DRAWING: Figure 1-1COPYRIGHT: (C)2017,JPO&INPIT【課題】肥料または植物種子または農薬の表面または内部に磁性を有する四三酸化鉄を付着または混合し、これらの磁性付加体に電磁力を作用させて水田や畑等の圃場に供給・散布する装置を提供する。【解決手段】非磁性体の物質に磁性を有する磁性材が付与された粒状の磁性付加体Ｍ．Ｍと、投入口Ｉ及び投出口Ｏを有し、この投入口Ｉと投出口Ｏとの間に磁性付加体Ｍ．Ｍを移動させる移動経路を備えたケースと磁性付加体Ｍ．Ｍを吸着し、磁界を動かすことにより磁性付加体Ｍ．Ｍを移動経路に沿って移動させる電磁石Ｍとを具備する磁性付加体Ｍの移動装置である。【選択図】図１－１
