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.<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 2<\/td>\n | National foreword <\/td>\n<\/tr>\n | ||||||
| 5<\/td>\n | European foreword <\/td>\n<\/tr>\n | ||||||
| 6<\/td>\n | Introduction <\/td>\n<\/tr>\n | ||||||
| 8<\/td>\n | 1 Scope 2 Normative references 3 Terms and definitions <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | 4 Principe of the method 5 Sampling 6 Preparation of sample for microbial analysis 7 Method for enumeration of microorganisms 7.1 General 7.2 Enumeration using a solid media 7.2.1 General <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | 7.2.2 Number of Petri dishes per dilution 7.2.3 Pour plate techniques 7.2.4 Surface inoculation <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | 7.2.5 Incubation 7.2.6 Calculation and expression of results obtained with solid media <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | 7.3 Enumeration and quantification using a liquid medium 7.3.1 Principle 7.3.2 Inoculation 7.3.3 Choice of inoculation system <\/td>\n<\/tr>\n | ||||||
| 20<\/td>\n | 8 Expression of results 9 Test report 10 Quality assurance <\/td>\n<\/tr>\n | ||||||
| 21<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Plant biostimulants – Determination of microorganisms’ concentration<\/b><\/p>\n |