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We provide you with fertilisation advice based on the target figures for the crop in organic substrates (potting soil), with particular emphasis on the composition of the irrigation water, the stage of growth and any recirculation. The analysis should preferably be repeated every 2 to 4 weeks.

The potting soil report provides analysis alongside a visual representation of the assessed values. We provide bar charts which indicate whether a result is low, just right or high, so that you can identify any imbalances and fertilise accordingly. 

Physical analysis

The suitability of organic substrates is assessed with a physical analysis. Parameters such as the moisture/air balance, shrinkage and bulk density determine the impact the substrate will have on crop quality. The RHP (the European Knowledge Center for Growing Media) uses these methods to check the composition of potting soil from the growing media industry. This analysis is performed by Eurofins Agro.

Basic analyses  parameters: pH, EC, NH4, K, Na, Ca, Mg, NO3, Cl, S, HCO3P, Fe, Mn, Zn, B, Cu, Mo, Si.  


  • Ureum
  • Aluminium (Al)
  • Fluor (F)

A pretreatment to remove slow release fertilizers (CRF) granules is recommended.

More information

Name Date File
Brochure Explanation Report 24-01-2021
Example Potting Soil - Diffenbachia [code 310] 25-01-2021
Example Potting Soil - Tomato Coir [code 310] 25-01-2021