SIST-TS CEN/TS 17700-1:2023

SLOVENSKI STANDARD
SIST-TS CEN/TS 17700-1:2023
01-januar-2023
Rastlinski biostimulanti - Navedbe - 1. del: Splošna načela
Plant biostimulants - Claims - Part 1: General principles
Pflanzen-Biostimulanzien - Auslobungen - Teil 1: Allgemeine Grundsätze
Biostimulants des végétaux - Allégations - Partie 1 : Principes généraux
Ta slovenski standard je istoveten z: CEN/TS 17700-1:2022
ICS:
65.080 Gnojila Fertilizers
SIST-TS CEN/TS 17700-1:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST-TS CEN/TS 17700-1:2023

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SIST-TS CEN/TS 17700-1:2023


CEN/TS 17700-1
TECHNICAL SPECIFICATION

SPÉCIFICATION TECHNIQUE

March 2022
TECHNISCHE SPEZIFIKATION
ICS 65.080
English Version

Plant biostimulants - Claims - Part 1: General principles
Biostimulants des végétaux - Allégations - Partie 1 : Biostimulanzien für die pflanzliche Anwendung -
Principes généraux Angaben - Teil 1: Allgemeine Grundsätze
This Technical Specification (CEN/TS) was approved by CEN on 3 January 2022 for provisional application.

The period of validity of this CEN/TS is limited initially to three years. After two years the members of CEN will be requested to
submit their comments, particularly on the question whether the CEN/TS can be converted into a European Standard.

CEN members are required to announce the existence of this CEN/TS in the same way as for an EN and to make the CEN/TS
available promptly at national level in an appropriate form. It is permissible to keep conflicting national standards in force (in
parallel to the CEN/TS) until the final decision about the possible conversion of the CEN/TS into an EN is reached.

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, Turkey and
United Kingdom.





EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TS 17700-1:2022 E
worldwide for CEN national Members.

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Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Type of information that can be used to demonstrate efficacy of a claim . 6
4.1 Field and/or protected crop experimental data . 6
4.2 Under controlled conditions (e.g.: laboratory data, greenhouse, growth chamber…) . 6
4.3 Literature review . 6
5 General guideline for trials/assays of plant biostimulants . 6
5.1 General . 6
5.2 Crop groupings for the performance of plant biostimulant trials . 7
5.3 Minimum number of trials to be provided . 9
5.4 Trial design and statistical analysis . 11
6 Terminology of crops on the label . 13
7 Quality Criteria. 13
7.1 General . 13
7.2 Criteria for type of organization in charge of trial . 13
7.3 Modes of operation . 14
8 Information to be collected in individual trials . 15
8.1 Experimental conditions . 15
8.2 Application of the product . 15
8.3 Recording measurements . 16
8.4 Presentation of the results . 16
Annex A (informative) P-value choice and impact on the results quality . 17
Bibliography . 18

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European foreword
This document (CEN/TS 17700-1:2022) has been prepared by Technical Committee CEN/TC 455 “Plant
biostimulants”, the secretariat of which is held by AFNOR.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document has been prepared under a Standardization Request given to CEN by the European
Commission and the European Free Trade Association.
The CEN/TS 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 nutrient in the soil or rhizosphere.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
According to the CEN/CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to announce this Technical Specification: 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, Turkey and the United
Kingdom.
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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 can 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.
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1 Scope
This document specifies the general principles for justifying the product claims for plant biostimulants.
General principles consist of and define all general parameters, requirements and quality criteria, and
are intended to be applied in order to assess the efficacy of trials used for claim(s) validation as a result
of the use of a plant biostimulant.
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.
CEN/TS 17700-5:2022, Plant biostimulants — Claims — Part 5: Determination of availability of confined
nutrients in the soil or rhizosphere
CEN/TS 17724:2022, Plant biostimulants — Terminology
3 Terms and definitions
For the purposes of this document, the terms and definitions given in CEN/TS 17724:2022 and the
following apply.
3.1
plant biostimulant
product stimulating plant nutrition processes independently of the product’s nutrient content with the
sole aim of improving one or more of the following characteristics of the plant or the plant rhizosphere:
• nutrient use efficiency,
• tolerance to abiotic stress,
• quality traits,
• availability of confined nutrient in soil or rhizosphere
3.2
claim
effect(s) of the product that can be asserted on the product label of a plant biostimulant after the
conformity assessment procedure
3.3
general principle
rule defining the crops and quality criteria applicable to all plant biostimulants for carrying out the tests
necessary to justify the claim
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3.4
crop
cultivated plant including all components of the plant (above ground parts and below ground parts),
mushrooms, microalgae and macroalgae
3.5
plant nutrient
chemical element used by the plant for growth and development, usually classified as a Primary
Macronutrient, Secondary Macronutrient or Micronutrient in the quantity required by the plant
Note 1 to entry: Carbon, hydrogen, and oxygen are also essential elements for plant growth.
Note 2 to entry: Primary Macronutrients – Nitrogen (N), Phosphorus (P), Potassium (K),
Secondary Macronutrients – Calcium (Ca), Magnesium (Mg), Sodium (Na), Sulphur (S).
Micronutrients – Boron (B), Cobalt (Co), Copper (Cu), Iron (Fe), Manganese (Mn), Molybdenum
(Mo), Zinc (Zn).
3.6
protected crop
crop cultivation in greenhouses or plastic tunnels with or without specific control of climate conditions
according to the farming practice
EXAMPLE cucumber or tomato cultivation
4 Type of information that can be used to demonstrate efficacy of a claim
4.1 Field and/or protected crop experimental data
Field trials are essential to justify plant biostimulant claims. For some claims, however, the appropriate
field conditions cannot always be easily reached (for example, salt stress or cold stress) in the field.
4.2 Under controlled conditions (e.g.: laboratory data, greenhouse, growth chamber…)
Plant biostimulant claims can be proven (depending on the claim defined in the dedicated Technical
Specification) by data generated under controlled conditions (e.g. greenhouses, growth room, growth
chamber, laboratory data).
4.3 Literature review

Scientific literature can be used as given in Technical Specifications CEN/TS 17700-2:2022 ,

CEN/TS 17700-3:2022 , CEN/TS 17700-4:2022 and CEN/TS 17700-5:2022 to describe analytical
methods and methods used to measure the effect of a product.
Only peer review literature (e.g. referenced by the Scopus/Web of science databases) shall be accepted.
5 General guideline for trials/assays of plant biostimulants
5.1 General
All experiments/trials shall be performed according to the Quality Criteria defined in this document.
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5.2 Crop groupings for the performance of plant biostimulant trials
The crop groupings for conduction of plant biostimulant trials are defined in Table 1, except for the
availability of confined nutrients in a soil claim. If the crop is not listed in Table 1, refer to the definition
below to determine the appropriate crop group. Moreover, if the crop does not fit one of these definitions
below, the “a specific crop” rule described in Table 2 will be followed.
• Broadacre crops (combinable and processing products): annual and non-annual crops usually
characterized by being grown in large extensions, harvested via combiners or industrial harvesters,
with the aim of obtaining vegetative organs, Roots, Tubers and/or seeds/grains,
• Woody perennials: non-annual crops with the ability to cover their stems with suberized cork,
• Vegetables, ornamental and AMP (Aromatic and Medicinal Plant) crops: annual and non-annual
crops usually correlated with seasonality and not included in the broadacre and woody perennial
crops.
Table 1 — Crop groupings
Broadacre:
a
Vegetables, ornamental and AMP
Woody Perennials
Combinable and Processing
crops

Products
BARLEY ALMOND ANGELICA
BEAN APPLE ANISE
BEET APRICOT ASPARAGUS
BORAGE AVOCADO AUBERGINE
BUCKWHEAT BAY BALM
CHICKPEA BILBERRY BANANA
CLOVER BLACK CURRANT BASIL
COTTON BLACKBERRY BROCCOLI and CALABRESE
DURUM WHEAT BLUEBERRY BRUSSELS SPROUT
EVENING PRIMROSE CAPERS BULB ONION
GRASSLAND CHERIMOYA CABBAGE
HEMP CHERRY CARDOON
LENTIL CHESTNUT CARROT
LINSEED CITRUS FRUITS CAULIFLOWER
LUCERNE COCOA TREE CELERIAC
LUPIN COFFEE TREE CELERY
CELERY LEAVES (Caraway and Salad
MAIZE CRANBERRY
Burnet)
MUSTARD (for seed) CURRY LEAVES CHERVIL
OAT DATE CHICORY (Witloof)
PEA ELDERBERRY CHILLI
POPPY FIG CHINESE CABBAGE
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Broadacre:
a
Vegetables, ornamental and AMP
Woody Perennials
Combinable and Processing
crops

Products
POTATO GRAPE CHIVES
QUINOA GUAVA CHOI SUM
RAPE HAZELNUT COLLARD
RICE HOPS CORIANDER
RYE JUNIPER COURGETTE and SUMMER SQUASH
SAFFLOWER KAFFIR LIME CRESS
SAINFOIN KIWI CUCUMBER
SESAME LIQUORICE DILL
SORGHUM LOGANBERRY EDIBLE FLOWERS
SOYBEAN MANGO EDIBLE LEAF MUSTARD
SPELT MEDLAR ENDIVE
SUGAR BEET MULBERRY FENNEL
SUGARCANE NECTARINE FLOWERS and FILLERS
SUNFLOWER OLIVE GARLIC
SWEET POTATO PAPAYA GHERKIN
SWEETCORN PASSION FRUIT GLOBE ARTICHOKE
TOBACCO PEACH HORSERADISH
TRITICALE PEAR JERUSALEM ARTICHOKE
TURF PERSIMMON KALE and CAVOLO NERO
VETCH PISTACHIO KOHLRABI
WHEAT PLUM LAMB'S LETTUCE
 POMEGRANATE LAND CRESS
 QUINCE LEEK
 RASPBERRY LETTUCE
 RED CURRANT LOVAGE
 ROSEHIP MAJORAM
 TEA TREE MELON
 WALNUT MINT
  MUSHROOM
  OREGANO
  OTHERS AMP
  PARSLEY
  PARSNIP
  PEANUT
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Broadacre:
a
Vegetables, ornamental and AMP
Woody Perennials
Combinable and Processing
crops

Products
  PEPPER
  PINEAPPLE
  PUMPKIN and WINTER SQUASH
  PURSLANE
  RADISH
  RED BEET
  RHUBARB
  ROCKET
  ROSEMARY
  SAFFRON
  SAGE
  SALAD ONION
  SALSIFY
  SAVORY
  SEA KALE
  SHALLOT
  SPINACH
  STRAWBERRY
  SWEDE
  SWEET CICELY
  SWISS CHARD (Spinach Beet)
  TARRAGON
  THYME
  TOMATO
  TURNIP
  VANILLA
  WATERCRESS
  WATERMELON
a
Aromatic and Medicinal Plant
5.3 Minimum number of trials to be provided
To justify a claim, a minimum number of trials shall be performed with the same protocol and methods
per claim according to the criteria described in the Table 2.
When trials are carried out without crops, three pH categories (pH < 6,2 /6,2 < pH < 7,5 /pH > 7,5) and
four type of textures categories (Silt, Sand, Clay, Loam) have to be considered, as described in Table 2.
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NOTE For more information, refer to CEN/TS 17700-5:2022.
Table 2 — Minimum number of trials based on the claim to be justified
Claim that may credibly be made on this basis Minimum number of trials
Trial carried out with plants
3 trials on the crop
Effect claimed for a specific crop
Claim is successfully demonstrated on the crop chosen
during the same year or different years.
6 trials with minimum of 2 different crops
Claim is successfully demonstrated on two crops chosen
Effect claimed for the entire crop group during the same year or different years.
When the claim is demonstrated for two crops within a
group, this is regarded as valid for the entire crop group
8 trials in total from 2 different groups
=
Effect claimed for two entire crop groups later
4 trials per group (with min of 2 different crops per group)
Claim is successfully demonstrated on crops chosen during
the same year or different year.
9 trials in total from 3 different groups
=
Effect claimed without being required to limit
3 trials per group (with min of 2 different crops per group)
it to any specific crop grouping
Claim is successfully demonstrated on crops chosen during
the same year or different years.
Trial carried out without plants
2 trials in total from 2 different pH categories in one specific
soil type
Effect claimed for specific soil type categories The soil type shall be chosen according to the rules
and all pHs mentioned in CEN/TS 17700-5:2022, 6.2.1
Claim is successfully demonstrated on the soil chosen
during the same year or different years
3 trials in total from 3 different soil texture categories in
one specific pH category
Effect claimed for specific pH categories for The soil type shall be chosen according to the rul
...