29 grams K2SO4 (Potassium Sulfate)
33 grams KNO3 (Potassium Nitrate)
3 grams KH2PO4 (Mono Potassium Phosphate)
20 grams MgSO4 (Magnesium Sulfate)
This quantity is for creating 500 ml of Macro mix. Best valued and highly concentrated fertilizers.
For instruction on PPS Pro method of fertilizing please check our blog post here: PPS PRO