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MasterBlend Tomato (4-18-38) application steps and calculator

Mixing instruction for 5 gallons:

- Add 12 grams (approx. 2 teaspoons) MasterBlend and dissolve completely.

- Add 6 grams (approx. 1.5-2 teaspoons) Magnesium Sulfate (Epsom Salt) and dissolve completely.

- Add 12 grams (approx. 2 teaspoons) Calcium Nitrate and dissolve completely.

Adjust your solution pH to the desired value. (Ideal is 5.5 – 6.5)

Use half to three-fourths values if growing lettuce instead of tomatoes.


NOTE: Proper order is 1. MasterBlend 2. Epsom Salt 3. Calcium Nitrate.


Use the calculator below for different amounts of water.

Enter gallons of water:

For 0 gallons of water:
TomatoesLettuce
MasterBlend 0 g 0 g
Epsom Salt 0 g 0 g
Calcium Nitrate 0 g 0 g

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