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ISO/NP 25786

Biostimulants — Phosphate solubilizing bacteria — Test methods

General information

Current stage: 10.20 Effective date: Aug 12, 2025

Originator: ISO

Owner: ISO/TC 134

Type: International Standard

Scope

This document specifies the test methods for phosphate solubilizing bacteria (PSB) in Biostimulants, focusing on their phosphate solubilizing activity. It applies to both solid and liquid Biostimulants containing PSB, intended for use in seed coating or soil, root and seedling inoculation across various plant species.

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IN_DEVELOPMENT
ISO/NP 25786
10.20 New project ballot initiated
Aug 12, 2025