How do Botanists know what foods plants like?
They actually analyse the plant’s tissues for basic chemicals such as Nitrogen, Potassium, Phosphorus, Magnesium, Sulphur, Iron, Boron and the other trace elements. An instrument called an ICP Spectrophotometer can analyse elements down to parts per million. Since the plant is made up from “what it eats”, that provides Botanists with the answer.
