Tag Archives: Iron

17 Essential Plant Nutrients are Easy to Remember with this Mnemonic

CHOPKiNS CaFe, Mg was once a popular mnemonic for introducing students to the list of macronutrients plants need.   Read as C. Hopkin’s café (is) Mighty Good, the statement includes symbols for 9 macronutrients plants need. The mnemonic was never perfect.  For example, iron (represented by the ‘Fe’ in CaFe) is really a micronutrient.  Plants only need a little bit of it.  Furthermore, ...

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