| 摘要 |
PROBLEM TO BE SOLVED: To prepare amendments for improving planting soil, capable of being utilized as planting materials and planting method of construction in agriculture and forestry, horticulture, landscape gardening, and engineering works by forming the amendment with a grain material including specific fiber. SOLUTION: These amendments for improving planting soil is formed with a grain material including fiber for improving block objects so as to become materials for planting ground. These amendments can also be formed with a mixture between block objects and the amendments. Planting ground can be improved by blending block objects with >=10 vol.% amendment mentioned above.
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