FprEN 17722
(Main)Plant biostimulants - Determination of mycorrhizal fungi
Plant biostimulants - Determination of mycorrhizal fungi
This document specifies a horizontal method for the enumeration and genus/species determination [2], [3], [4] of mycorrhizal fungi in microbial plant biostimulants.
This document is applicable to the blends of fertilizing products where a blend is a mix of at least two of the following component EU fertilizing products categories: Fertilizers, Liming Materials, Soil Improvers, Growing Media, Plant Biostimulants and where the following category Plant Biostimulants is the highest percentage in the blend by mass or volume, or in the case of liquid form by dry mass. If Plant Biostimulants is not the highest percentage in the blend, the European Standard for the highest percentage of the blend applies. In case a blend of fertilizing products is composed of components in equal quantity or in case the component EU fertilising products used for the blend have identical formulations , the user decides which standard to apply.
Pflanzen-Biostimulanzien - Bestimmung von Mykorrhizapilzen
Diese Norm wurde entwickelt, um ein horizontales Verfahren für die Zählung und die Bestimmung der Gattung/Spezies [1] [2] [3] von Mykorrhizapilzen in mikrobiellen Pflanzen-Biostimulanzien in Übereinstimmung mit der Verordnung (EU) 2019/1009 des Europäischen Parlaments und des Rates bereitzustellen.
Biostimulants des végétaux - Détermination des champignons mycorhiziens
Le présent document spécifie une méthode horizontale pour le dénombrement et la détermination du genre/de l’espèce [2], [3], [4] des champignons mycorhiziens dans les biostimulants microbiens des végétaux.
Le présent document est applicable aux mélanges de fertilisants constitués d’au moins deux composants appartenant aux catégories de fertilisants UE suivantes : engrais, amendements minéraux basiques, amendements du sol, supports de culture, biostimulants des végétaux et, dans lesquels la catégorie Biostimulants des végétaux représente le pourcentage le plus élevé du mélange en masse ou en volume, ou dans le cas d’un liquide, en masse sèche. Si les biostimulants des végétaux ne représentent pas le pourcentage le plus élevé du mélange, la Norme européenne relative au composant représentant le pourcentage le plus élevé du mélange s’applique. Dans le cas où un mélange de fertilisants contient des composants en quantité égale ou dans le cas où les composants des fertilisants UE utilisés pour le mélange ont des formulations identiques, l’utilisateur décide quelle norme appliquer.
Rastlinski biostimulanti - Določanje mikoriznih gliv
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
oSIST prEN 17722:2023
01-maj-2023
Rastlinski biostimulanti - Ugotavljanje prisotnosti in števila mikoriznih gliv
Plant biostimulants - Determination of mycorrhizal fungi
Pflanzen-Biostimulanzien - Bestimmung von Mykorrhizapilzen
Biostimulants des végétaux - Détermination des champignons mycorhiziens
Ta slovenski standard je istoveten z: prEN 17722
ICS:
65.080 Gnojila Fertilizers
oSIST prEN 17722:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 17722:2023
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oSIST prEN 17722:2023
DRAFT
EUROPEAN STANDARD
prEN 17722
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2023
ICS 65.080 Will supersede CEN/TS 17722:2022
English Version
Plant biostimulants - Determination of mycorrhizal fungi
Biostimulants des végétaux - Détermination des Pflanzen-Biostimulanzien - Bestimmung von
champignons mycorhiziens Mykorrhizapilzen
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 17722:2023 E
worldwide for CEN national Members.
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oSIST prEN 17722:2023
prEN 17722:2023 (E)
Contents Page
European foreword . 4
Introduction . 5
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 7
4 Methods for the quantification of mycorrhiza .10
4.1 General .10
4.2 How to prepare the initial sample .12
4.2.1 General .12
4.2.2 Liquid – water-based formulations .12
4.2.3 Liquid – oil-based (emulsifiable concentrate EC) formulations .12
4.2.4 Solid – wettable powder (WP) formulations .12
4.2.5 Solid – water dispersible granules (WDG) formulations .12
4.2.6 Solid – pellets, granules, microgranules (slow release) formulations.13
4.2.7 Solid – substrate .
...
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