No matter slog containing silicon was manured into soil after size degradation or used as material of multivariate compound fertilizer, the fixation of slog to P must be taken into account.

• 含硅熔渣无论是直接磨细施入土壤中作为硅肥,还是以熔渣为原料生产含硅多元复合肥,都必须考虑熔渣对磷的固定作用。