This document specifies references to methods for determining the content of urease inhibiting compounds in organo-mineral fertilizers.
This document is applicable to fertilizing product blends where the blend is a mix of at least two of the following components: organic fertilizers and inorganic fertilizers to which urease inhibitors have been added.
This document is not applicable to fertilizing product blends containing liming materials, soil conditioners, growing media or plant biostimulants.
NOTE: If the word "harmonized" (marked in green) is not found in the field with the name of the directive, it means that the European standard is not cited in the OJEU.
PROJECT
dnaSRPS EN 18318:2025
50.20
Proof sent to secretariat or FDIS ballot initiated: 8 weeks
Oct 15, 2026
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