Fertilisers Regulation, Annex I, A, E.1, E2.4 and G

EU Regulation 2003/2003 consolidates all the European Union rules that apply to fertilisers, and ensures that the technical requirements outlined in the regulation are implemented uniformly. The regulation only applies to mineral fertilisers consisting of one or more plant nutrients. Annex I lists fertiliser types according to their specific characteristics, while Annex II provides a list of associated tolerances.

Ref No.
Annex Section
A Inorganic straight primary nutrient fertilisers
Minimum content of nutrients (percentage by weight). Data on the expression of nutrients. Other requirements Nutrient (b) Maximum content
6 % by weight
Nutrient (b) Expressed as
As N
Other nutrient (b)
Nitric nitrogen
N Minimum content
19 % by weight
N Expressed as
As ammoniacal and nitric nitrogen
Mg Minimum content
6 % by weight
Mg Expressed as
As water-soluble magnesium oxide
Nutrient declaration
Total nitrogen

Ammoniacal nitrogen

Nitric nitrogen

Water-soluble magnesium oxide

A.1 Nitrogenous fertilisers
0.8 (for the primary nutrient)
Production and Ingredients
Chemically obtained product containing ammonium nitrate, ammonium sulphate and magnesium sulphate as essential ingredients
Type designation
Magnesium sulphonitrate

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