INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES

**Definition:** This place covers:

Materials that affect the growth of plants solely by supplying nutrients ordinarily required for growth or materials that are used to prevent or cure mineral deficiencies in plants as listed below:

Preparation, treatment or modification of any of the materials above: e.g., by chemical means (e.g. addition of stabilisers, preservatives), physical means (e.g., irradiation, concentration, purification, separation) or combination of both chemical and physical means, with the proviso that the resultant product is proper for classification in this subclass.

Methods of preparing inorganic fertilisers or fertilisers that produce carbon dioxide covered by this subclass in general.

**Glossary:** - fertiliser (fertiliser material): natural or artificial substance containing the chemical elements that improve growth and productiveness of plants. - inorganic compound: a compound devoid of a carbon atom and containing a non-metallic element or a compound containing a carbon atom, and satisfying one of the following criteria: the compound cannot have a carbon atom having direct bonding to another carbon atom, or the compound cannot have direct bonding between a carbon atom and a halogen or hydrogen atom, or the compound cannot have direct bonding between a carbon atom and a nitrogen atom by a single or double bond. The following are exceptions to the above and are to be considered as inorganic compounds: compounds consisting of only carbon atoms, (e.g. fullerenes), cyanogen, cyanogen halides, cyanamide, phosgene, thiophosgene, hydrocyanic acid, isocyanic acid, isothiocyanic acid, fulminic acid, unsubstituted carbamic acid, and salts of the previously mentioned acids and which contain the same limitations as to a carbon atom.