Masterblend Tomato Formula (4-18-38)


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Viewed by many as the gold standard for hydroponic growing, Masterblend tomato formula is well-suited for for both soil based and hydroponic growing and it’s now available in Canada from Gecko Grow. Ideal for tomatoes, peppers, leafy greens and more! It is 100% water soluble and when used with magnesium sulfate, calcium nitrate and Iron (sold separately), creates a super charged solution that contains all the macro and micro nutrients your plants need to thrive.

Dosage instructions:

  1. Mix 12 grams of Masterblend Tomato Formula (4-18-38) into 5 gallons of warm water until completely dissolved.
  2. Add 6 grams of Magnesium Sulfate (Epsom Salt) and stir until completely dissolved
  3. Add 12 grams of Calcium Nitrate (15.5-0-0) and stir until completely dissolved.

NOTE: Masterblend and Magnesium Sulfate must be completely dissolved prior to adding Calcium Nitrate to prevent nutrient lockout.

Dilute to 1/2 strength for seedlings.

Weight1 kg
Dimensions30 × 20 × 10 cm

1 Kg, 3 Kg, 5 KG


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