Hydroponic Plant Nutrients - Mix your own


Here is a recipe to create your own hydroponic plant nutrients mix. I have not personally tried this recipe so I can make no guarantees as to whether it will work or not. Make it and use it at your own risk - or should I say at the risk of your plants... Use it at 1 t per gallon of water. In any event here it is:

Chemical Dry Ounces GramsComments
Potassium Nitrate 9 255An ingredient in gunpowder; also called Saltpeter
Calcium Sulphate 7 198Plaster of Paris
Magnesium Sulphate 6 170Epsom Salts
Monocalcium Phosphate 4 113---
Ammonium Sulfate 1.5 43Principle source of Nitrogen in recipe
Iron Sulphate - ---Use a pinch only; maybe 1/2 t

Here's another one...

Chemical Dry Ounces GramsNutrient Added
Sodium Nitrate 12.5 355 Nitrogen
Potassium Sulphate 4 113 Potassium, Sulphur
Super Phosphate 5 142 Phosphate, Calcium
Magnesium Sulphate 3.5 100 Magnesium, Sulphur
Iron Sulphate - 2 Iron

Mix all ingredients very well and store in an air-tight container. When needed use '1 t' for each gallon of water. In the table below the following apply: '1 teaspoon = 1 t', '1 tablespoon = 1 T' and I calculate '1 t' to be equal to 10 grams. Be careful with your measurements or you could very well create a mixture toxic to your plants. As for trace elements, these are usually accidental by-products of commercial fertilizers so here is another recipe solely for trace elements:

Chemical Amount
Manganese Sulphate 1 t
Boric Acid powder 1 t
Zinc Sulphate .5 t
Copper Sulphate .5 t

Mix together well and store in another air-tight container. When needed add '.5 t' to 1 quart water and mix well. Add 1 liquid oz of this solution to 3 gallons of your plant nutrients solution from above.

Good luck ...


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