Regulation (EU) 2019/1009 of the European Parliament and of the Council of 5 June 2019 laying down rules on the making available on the market of EU fertilising products and amending Regulations (EC) No 1069/2009 and (EC) No 1107/2009 and repealing Regulation (EC) No 2003/2003 (Text with EEA relevance) (c. 1009)

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ANNEX I U.K. Product Function Categories (PFCs) of EU fertilising products

PART II U.K. REQUIREMENTS RELATED TO PFCS

PFC 5(C): UREASE INHIBITOR U.K.

1. A urease inhibitor shall inhibit hydrolytic action on urea (CH₄N₂O) by the urease enzyme, primarily targeted to reduce ammonia volatilisation. U.K.

2. Compared to a control sample where the urease inhibitor has not been added, an in vitro test containing the urease inhibitor shall show a 20 % reduction in the rate of hydrolysis of urea (CH₄N₂O) based on an analysis carried out 14 days after application at the 95 % confidence level. U.K.