BS PD CEN/TS 17731:2022 PDF
This document provides an overview of relevant methods for the determination of specific parameters in growing media, including:
— the electrical conductivity;
— the pH;
— dry matter;
— the nitrogen, P2O5 (phosphorus pentoxide) and K2O (potassium oxide) content extractable by CaCl2/DTPA;
— the total copper and zinc content;
— the quantity.
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