EN 17700-2:2024

SLOVENSKI STANDARD
oSIST prEN 17700-2:2023
01-maj-2023
Rastlinski biostimulanti - Navedbe - 2. del: Povečanje učinkovitosti hranil pri
rastlinah zaradi uporabe biostimulanta
Plant biostimulants - Claims - Part 2: Nutrient use efficiency resulting from the use of a
plant biostimulant
Pflanzen-Biostimulantien - Auslobungen - Teil 2: Effizienz der Nährstoffverwertung
infolge der Verwendung eines Pflanzen-Biostimulans
Biostimulants des végétaux - Allégations - Partie 2 : Efficacité d'utilisation des éléments
nutritifs résultant de l'utilisation d'un biostimulant des végétaux
Ta slovenski standard je istoveten z: prEN 17700-2
ICS:
65.080 Gnojila Fertilizers
oSIST prEN 17700-2:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

oSIST prEN 17700-2:2023
oSIST prEN 17700-2:2023
DRAFT
EUROPEAN STANDARD
prEN 17700-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2023
ICS 65.080 Will supersede CEN/TS 17700-2:2022
English Version
Plant biostimulants - Claims - Part 2: Nutrient use
efficiency resulting from the use of a plant biostimulant
Biostimulants des végétaux - Allégations - Partie 2 : Pflanzen-Biostimulantien - Auslobungen - Teil 2:
Efficacité d'utilisation des éléments nutritifs résultant Effizienz der Nährstoffverwertung infolge der
de l'utilisation d'un biostimulant des végétaux Verwendung eines Pflanzen-Biostimulans
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 455.
If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations
which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC
Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 17700-2:2023 E
worldwide for CEN national Members.

oSIST prEN 17700-2:2023
prEN 17700-2:2023 (E)
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Terminology of the claim . 6
5 Assessment indices to validate the claims . 6
6 Specifications for the performance of the trials . 8
6.1 Control . 8
6.2 Under controlled conditions . 9
Annex ZA (informative) Relationship of this European Standard and the essential
requirements of Regulation (EU) 2019/1009 making available on the market of EU
fertilizing products aimed to be covered . 10
Bibliography . 11
oSIST prEN 17700-2:2023
prEN 17700-2:2023 (E)
European foreword
This document (prEN 17700-2:2023) has been prepared by Technical Committee CEN/TC 455 “Plant
biostimulants”, the secretariat of which is held by AFNOR.
This document is currently submitted to the CEN Enquiry.
This document will supersede CEN/TS 17700-2:2022.
prEN 17700-2:2023 includes the following significant technical changes with respect to
CEN/TS 17700-2:2022:
— The table giving the indexes is split into two tables;
— Examples are added for better understanding of the trial design for the indexes RE, PE and AE.
This document has been prepared under a Standardization Request given to CEN by the European
Commission and the European Free Trade Association, and supports essential requirements of EU
Directive(s) / Regulation(s).
For relationship with EU Directive(s) / Regulation(s), see informative Annex ZA, which is an integral part
of this document.
The EN 17700 series, Plant biostimulants — Claims, consists of the following parts:
— Part 1:General principles;
— Part 2: Nutrient use efficiency resulting from the use of a plant biostimulant;
— Part 3: Tolerance to abiotic stress resulting from the use of a plant biostimulant;
— Part 4: Determination of quality traits, resulting from the use of a plant biostimulant;
— Part 5: Determination of availability of confined nutrients in the soil or rhizosphere.
oSIST prEN 17700-2:2023
prEN 17700-2:2023 (E)
Introduction
This document has been developed to provide guidance for a consistent approach to justify the claims
associated with the use of plant biostimulants in agriculture.
The definition of plant biostimulants to be used in the regulation on fertilizing materials is claims-based.
For this reason, demonstrating that a product is indeed a bona fide plant biostimulant depends on a
demonstration of its effect.
The placing of a plant biostimulant on the market should never be considered to guarantee effectiveness
under all conditions, as many factors may influence the performance of a plant biostimulant in the field.
Plant biostimulants used in agriculture can be applied in multiple ways: on soil, on plant, as seed
treatment, etc. This document is applicable to all application types of plant biostimulants in agriculture.

oSIST prEN 17700-2:2023
prEN 17700-2:2023 (E)
1 Scope
This document provides guidance for justifying agronomic nutrient use efficiency claims of plant
biostimulants used in agriculture.
To be in compliance with this standard, it is important also to follow the Recommendations and Quality
Criteria described in the Standard of General Principles EN 17700-1:— .
This document is aimed primarily at manufacturers, laboratories, researchers, technical centres,
companies that will put the products on the market, notifying authorities, notified bodies, and market
surveillance authorities.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 17700-1:— , Plant biostimulants — Claims — Part 1: General principles
EN 17724:— , Plant biostimulants — Terminology
3 Terms and definitions
1 2
For the purposes of this document, the terms and definitions given in EN 17700-1:— , EN 17724:— , and
the following apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp/
— IEC Electropedia: available at https://www.electropedia.org/
3.1
nutrient use efficiency
measure of a plant’s ability to acquire and utilize nutrients from the environment for a desired outcome
based on (a) nutrient availability (b) uptake efficiency and/or (c) utilization efficiency
Note 1 to entry: Nutrient use efficiency is a complex trait: it depends on the ability to take up the nutrients from
the soil, medium, fertilizers… but also on transport, storage, mobi
...