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
B Inorganic compound primary nutrient fertilisers
Minimum content of nutrients (percentage by weight). Data on the expression of nutrients. Other requirements NPK Minimum content
18 % by weight
NPK Expressed as
As total N + K2O
N Minimum content
3 % by weight
N Expressed as
As total nitrogen
K Minimum content
5 % by weight
K Expressed as
As K2O
Nutrient declaration
(1) Total nitrogen (2) Nitric nitrogen (3) Ammoniacal nitrogen (4) Ureic nitrogen (5) Cyanamide nitrogen

Water-soluble K2O

Other data
Total nitrogen

If any of the forms of nitrogen (2) to (5) amounts to at least 1 % by weight, it must be declared

Water-soluble potassium oxide

The indication 'low in chloride' is linked to a maximum content of 2 % Cl

Chloride content may be declared

B.3 NK fertilisers
1.1 (for N)

1.1 (for K2O)

1.5 (for total nutrients)

Production and Ingredients
Product obtained chemically or by blending, without addition of organic nutrients of animal or vegetable origin
Type designation
NK fertilisers

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