# Regulation (EC) No 2003/2003 of the European Parliament and of the Council of 13 October 2003 relating to fertilisers (Text with EEA relevance), Division B.3: NK fertilisers


B.3.1.
Type designation:
NK fertilisers.
Data on method of production:
Product obtained chemically or by blending, without addition of organic nutrients of animal or vegetable origin.
Minimum content of nutrients (percentage by weight):
Total: 18 % (N + K2O);
For each of the nutrients: 3 % N, 5 % K2O.
Forms, solubilities and nutrient content to be declared as specified in columns 4, 5 and 6Particle size
Data for identification of the fertilisersOther requirements
N
P2O5
K2O
N
P2O5
K2O
1
2
3
4
5
6
(1)
Total nitrogen
(2)
Nitric nitrogen
(3)
Ammoniacal nitrogen
(4)
Ureic nitrogen
(5)
Cyanamide nitrogen
Water-soluble K2O
(1)
Total nitrogen
(2)
If any of the forms of nitrogen (2) to (5) amounts to at least 1 % by weight, it must be declared
(1)
Water-soluble potassium oxide
(2)
The indication ‘low in chloride’ is linked to a maximum content of 2 % Cl
(3)
Chloride content may be declared
B.3.2.
Type designation:
NK fertiliser containing crotonylidene diurea or isobutylidene diurea or urea formaldehyde (as appropriate).
Data on method of production:
Product obtained chemically without addition of organic nutrients of animal or vegetable origin and containing crotonylidene diurea or isobutylidene diurea or urea formaldehyde.
Minimum content of nutrients (percentage by weight):
Total: 18 % (N + K2O);
For each of the nutrients:
5 % N
At least ¼ of the declared content of total nitrogen must derive from nitrogen form (5) or (6) or (7).
At least 3/5 of the declared nitrogen content (7) must be soluble in hot water,
5 % K2O.
Forms, solubilities and nutrient content to be declared as specified in columns 4, 5 and 6Particle size
Data for identification of the fertilisersOther requirements
N
P2O5
K2O
N
P2O5
K2O
1
2
3
4
5
6
(1)
Total nitrogen
(2)
Nitric nitrogen
(3)
Ammoniacal nitrogen
(4)
Ureic nitrogen
(5)
Nitrogen from crotonylidene diurea
(6)
Nitrogen from isobutylidene diurea
(7)
Nitrogen from urea formaldehyde
(8)
Nitrogen from urea formaldehyde that is only soluble in hot water
(9)
Nitrogen from urea formaldehyde that is soluble in cold water
Water-soluble K2O
(1)
Total nitrogen
(2)
If any of the forms of nitrogen (2) to (4) amounts to at least 1 % by weight, it must be declared
(3)
One of the forms of nitrogen (5) to (7) (as appropriate). Nitrogen form (7) must be declared in the form of nitrogen (8) and (9)
(1)
Water-soluble potassium oxide
(2)
The indication ‘low in chloride’ is linked to a maximum content of 2 % Cl
(3)
Chloride content may be declared

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Source: https://www.legislation.gov.uk/eur/2003/2003/division/B./division/B.3. (the official version)
Page: https://openlegislation.uk/eu-regulation-2003-2003/division-B./division-B.3.
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.