Table 2.

Nutrients (mL) for a 100% Hoagland solution

Components	Stock (g/L)	mL stock/30L
Macro-nutrients
1 M KNO3	101	150
1 M Ca(NO3)2 4H2O	236	150
Fe-EDTA	15	30
2 M MgSO4 7H2O	123	120
1 M KH2PO4	136	30
Micro-nutrients
H3BO3	2.86	30
MnCl2 4H2O	1.81
ZnSO4 7H2O	0.22
CuSO4 5H2O	0.08
H2MoO4 H2O	0.09

For Soybean we used a half strength solution: nutrients for 30L diluted in 60L of distilled water per week. pH of 6.47