Scientific and technical advances have enabled the development of new fertiliser products that require amendments to the current legal framework. Specifically, the development of fertiliser products that contain micro-organisms, increasing the availability of nutrients for plants, has entailed a thorough overhaul of Royal Decree 506/2013 of 28 June 2013 in order to include them in the Register of Fertiliser Products.

This Regulation updates the provisions of Royal Decree 506/2013 of 28 June 2013 on fertiliser products to take into consideration aspects related to micro-organisms which may be part of a fertiliser product. It also updates the annexes of said Royal Decree to include new types of products (Annex I), update provisions on identification and labelling (Annex II), amend a margin of error (Annex III), define methods of analysis for these new products (Annex VI) and correct an error in the instructions for including new fertiliser types (Annex VII). In addition, a new Annex VIII is added that sets out special requirements for fertiliser products developed containing micro-organisms.