PROBLEM TO BE SOLVED: To provide artificial culture soil excellent in a self-disintegration property and an eluting property of a silicic component in watering by solving a problem in which difficult points exist in the self-disintegration property and the eluting property of silicic acid in watering in a conventional soil. SOLUTION: The artificial soil is obtained by adding colloidal silica to a raw material consisting mainly of soil and granulating and drying the mixture. The colloidal silica is added in an amount of 0.5-20 wt.% and drying temperature of the colloidal silica is kept to≤400°C. COPYRIGHT: (C)2004,JPO
