Access to the CSA Masterclass modules is restricted to registered and logged in students. Please contact Fertitech if you require assistance or more information. Masterclass Modules Module 1 What is Soil? Cations & Anions Total Exchange Capacity (TEC) Base Saturation Open Module Module 2 Organic Matter Carbon – Nitrogen Ratio Open Module Module 3 pH of Soils Electrical Conductivity (EC) Open Module Module 4 The Elements/Base Saturation Cations Contains sub-modules 4A - 4B Open Module Module 5 The Elements Contains sub-modules 5A - 5E Open Module Module 6 When to use Lime, Gypsum & Dolomite Humates & Fulvic Open Module