What are the essential macro and micro-elements plants need?
The macro-elements plants need are: Hydrogen (H), Carbon (C), Oxygen (O), Nitrogen (N), Phosphorus (P), Calcium (Ca), Magnesium (Mg) and Sulfur (S). Essential micro-elements are: Boron (B), Copper (Cu), Iron (Fe), Molybdenum (Mo), Zinc (Zn), Manganese (Mn), Cobalt (Co), Nickel (Ni), and most recently Chlorine (Cl).