Plant biostimulants - Determination of microorganisms' concentration
Plant biostimulants - Determination of microorganisms' concentration
1 Scope This document specifies general rules to determine the concentration of microorganisms present in plant biostimulant products . The method is applicable to microbial plant biostimulants for verifying that the concentration of microorganisms does not exceed the respective limits outlined in the EU Regulation on Fertilising Products [1]. This horizontal method might not be appropriate in every detail for certain products . In this case, it is necessary to refer to the methodology of specific determination and quantification of the microorganisms .
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