Other important points of attention

Points of attention

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• Organic fertilizers
  When using organic fertilizers successfully, various aspects and their interactions must be taken into account. In summary, the dynamics surrounding organic fertilizers can be described as follows:

• CRF fertilizers
  CRF (controlled release fertilizers) can be used as base fertilization. Depending on the substrate mixture and the grower’s preferences, a choice is made for the basic fertilization and, if desired, for fertilizers with a controlled release. The release of nutrients from CRF fertilizers depends on the type of coating (release duration), the moisture content, temperature, and the uptake by the crop. The release process affects the EC and pH.

• Other points of attention
  If a substrate contains raw materials other than peat and/or inorganic fertilizer, traces of pesticides may be detected. For more information, consult the RHP Factsheet on pesticides.

For advice, please contact the advisor at your certified company. 

Disclaimer: The information contained in this leaflet is based on the most up-to-date knowledge of the substrate manufacturer and RHP. This leaflet is intended to limit the risk of damage resulting from the use of the substrate product. You agree to not hold the substrate manufacturer and/or RHP liable for any damage resulting from the information contained in this leaflet. No rights against the substrate manufacturer or RHP – including by third parties – may be derived from this leaflet. If you supply the substrate products to a third party, you are obliged to inform that third party of the contents of this leaflet (including this disclaimer).