Phosphorus, potassium, sulphur, calcium
Potassium, phosphorus, selenium, boron
Calcium, magnesium, manganese, copper
Magnesium, sulphur, iron, zinc
The primary macronutrients: nitrogen (N), phosphorus (P), potassium (K); the three secondary macronutrients: calcium (Ca), sulfur (S), magnesium (Mg); the micronutrients/trace minerals: boron (B), chlorine (Cl), manganese (Mn), iron (Fe), zinc (Zn), copper (Cu), molybdenum (Mo), nickel (Ni).