| 摘要 |
PROBLEM TO BE SOLVED: To provide a low cost soil improvement fertilizer suppressing the absorption of cadmium into agricultural crops and having both of soil improvement performance and fertilizer performance without requiring complicated soil management or flooding management and giving large load on environment. SOLUTION: The soil improvement fertilizer is obtained by kneading and solidifying a phosphate mineral and kaolin-based clay containing halloysite. The mixing ratio of the phosphate mineral to the kaolin-based clay containing halloysite is controlled to 30-300 pts.wt. to 100 pts.wt. phosphate mineral. Allophane, slaked lime, magnesian lime, calcium silicate and charcoal are further mixed in the soil improvement fertilizer. COPYRIGHT: (C)2009,JPO&INPIT |
