PROBLEM TO BE SOLVED: To improve a seed coating material.SOLUTION: A seed coating material is mainly constituted of a slag obtained by cooling a melting object after molten.SELECTED DRAWING: Figure 1【課題】種子コーティング材のさらなる改良【解決手段】溶融対象物を溶融後冷却して得られるスラグを主成分とする。【選択図】図1