| C | SK | CHEMISTRY; METALLURGY |
| C05 | KL | FERTILISERS; MANUFACTURE THEREOF (processes or devices for granulating materials, in general B01J 2/00; soil-conditioning or soil-stabilising materials C09K 17/00) [4] |
| C05D | UKL | INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B , C05C; FERTILISERS PRODUCING CARBON DIOXIDE |
| C05D 1/00 | HGR | Fertilisers containing potassium (C05D 7/00 takes precedence) |
| C05D 1/02 | UGR1 | | . | Manufacture from potassium chloride or sulfate or double or mixed salts thereof |
|
| C05D 1/04 | UGR1 | | . | from minerals or volcanic rocks |
|
| C05D 3/00 | HGR | Calcareous fertilisers (C05D 7/00 takes precedence) |
| C05D 3/02 | UGR1 | | . | from limestone, calcium carbonate, calcium hydrate, slaked lime, calcium oxide, waste calcium compounds |
|
| C05D 3/04 | UGR1 | | . | from blast-furnace slag or other slags containing lime or calcium silicates |
|
| C05D 5/00 | HGR | Fertilisers containing magnesium (C05D 7/00 takes precedence) |
| C05D 7/00 | HGR | Fertilisers producing carbon dioxide |
| C05D 9/00 | HGR | Other inorganic fertilisers |
| C05D 9/02 | UGR1 | | . | containing trace elements |
|
| C05D 11/00 | HGR | Mixtures of fertilisers covered by more than one of the preceding main groups |