Fertilisers Regulation, Annex I, F Nitrification and urease inhibitors

Regulation 2003/2003/EC consolidates all the European Union rules that apply to fertilizers, and ensure that the technical requirements outlined in the regulation are implemented uniformly. The regulation only applies to mineral fertilizers consisting of one or more plant nutrients. Annex I lists fertilizer types according to their specific characteristics. Fertilizers that meet this type designation may be sold and used throughout the EU.


EC / List no: 207-312-8 CAS no: 461-58-5
Ref No.
Minimum and maximum inhibitor content as a percentage by mass of the total nitrogen present as ammonium nitrogen and urea nitrogen Max inhibitor content
4.5 % by mass
Min inhibitor content
2.25 % by mass
IF.1 Annex I: F.1: Nitrification inhibitors

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