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Plant biostimulants. Determination of microorganisms' concentration
This document specifies the general rules to determine the concentration of microorganisms present in plant biostimulants expressed as the number of active units per volume or weight, or in any other manner that is relevant to the microorganism, e.g. colony forming units per gram (cfu/g).
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 fertilising products categories:
...and where the following category Plant Biostimulants is the highest % in the blend by mass or volume, or in the case of liquid form by dry mass.
If Plant Biostimulants is not the highest % in the blend, the European Standard for the highest % 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.
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