A contribution to set a legal framework for biofertilisers Malusa, Eligio Bojkov Vassilev, Nikolay PGPR Mycorrhizal fungi Rhizosphere Regulation Production standards The work has been supported by a grant to E.M. from the EU Regional Development Fund through the Polish Innovation Economy Operational Program, contract N. UDA-POIG.01.03.01-10-109/08-00. The extensive research, production and use of microorganisms to improve plant nutrition have resulted in an inconsistent definition of the term “biofertiliser” which, in some cases, is due to the different microbial mechanisms involved. The rationale for adopting the term biofertiliser is that it derives from “biological fertiliser”, that, in turn, implies the use of living microorganisms. Here, we propose a definition for this kind of products which is distinguishing them from biostimulants or other inorganic and organic fertilisers. Special emphasis is given to microorganism(s) with multifunctional properties and biofertilisers containing more than one microorganism. This definition could be included in legal provisions regulating registration and marketing requirements. A set of rules is also proposed which could guarantee the quality of biofertilisers present on the market and thus foster their use by farmers. 2020-07-28T06:55:50Z 2020-07-28T06:55:50Z 2014-06-06 info:eu-repo/semantics/article Malusá, E., Vassilev, N. A contribution to set a legal framework for biofertilisers. Appl Microbiol Biotechnol 98, 6599–6607 (2014). [https://doi.org/10.1007/s00253-014-5828-y] http://hdl.handle.net/10481/63160 10.1007/s00253-014-5828-y eng http://creativecommons.org/licenses/by/3.0/es/ info:eu-repo/semantics/openAccess Atribución 3.0 España Springer Nature