A Question on Fertilizer

by Naveen
(Dubai)

First of all thanks for doing such a wonderful job, your information can really help others who can't afford to buy such systems (which can be expensive). I need a small help on nutrients, I am planning to use monopotassium phosphate instead of monocalcium phosphate; can I use the same weight 113 gms?

My macro nutrients:

255 g of potassium nitrate(saltpeter),
198 g of calcium sulfate
170 g of magnesium sulfate,
113 g of monopotassium phosphate,
43 g of ammonium sulfate, and
1/2 scant tsp. of iron sulfate. Combine thoroughly and store in a dry container. Mix 1 tsp. of this nutrient mix to 1 gallon of water.

Trace elements:

1 tsp. of manganese sulfate,
1 tsp. of boric acid,
1/2 tsp. of zinc sulfate and 1/2 tsp of copper sulfate.

Combine thoroughly and store in a dry container. Dissolve 1/2 tsp of this powder in 1 qt. of water, and add 1/3 oz. of the resultant mixture to 1 gallon of the nutrient solution above