To disinfect the soil in a simple and safe process and provide a soil environment suitable for the growth of crops.SOLUTION: The present invention provides soil disinfection materials containing bivalent iron compounds, and a soil disinfection method having the step of applying the soil disinfection materials to the soil.SELECTED DRAWING: None【課題】簡易、安全な工程で土壌の消毒を行うこと及び農作物の生育に適した土壌環境を提供すること【解決手段】二価鉄化合物を含む土壌消毒用資材と、当該土壌消毒用資材を土壌に施用する工程を含む土壌消毒方法【選択図】なし