Essential Elements:

 C, H, O, P, K, N, S, Ca, Fe, Mg, Cu, Mn, Ni, Zn, Mo, B, Cl.

♣ C HOPKiNS CaFe is Mighty good CuMn Nick Zn before MoB Closes it.

(See Hopkins Cafe is mighty good, common Nick join before mob closes it).

Macronutrients:

C, H, O are non mineral elements. 

N, P, K, Ca, Mg & S.