| 摘要 |
An improved agricultural lime composition comprises, in combination, alkali earth carbonates, alkali earth sulphates and metal oxide hydrogels. The alkali earth sulphates may be made in situ by the addition of sulphuric acid to the carbonate. The improved lime may also contain primary, secondary and trace nutrients, crop seeds and agrochemicals. Industrial waste product may be used in the manufacture of the improved lime. The physico chemical nature of the improved lime confers extended release properties on the active ingredients involved. |
