Masterblend 4-18-38 Fertilizer (Tomato & Vegetable Formula) in 1 pound, 5 pound or Masterblend 25 pound bags.

MasterBlend fertilizers have been the go-to Hydroponic and Garden fertilizers for commercial gardeners for a long time. Their 4-18-38 Tomato and Vegetable Fertilizer provides proven results time after time. Because of the unique composition, it is recommended to use the 4-18-38 together with Magnesium Sulfate (Epsom Salt) and Calcium Nitrate for the ultimate balanced water soluble fertilizer.

• MasterBlend 4-18-38 is Water Soluble
• Direct from MasterBlend - Fertilizer for Tomatoes and Vegetables
• Highly concentrated!
• Master Blend fertilizer is perfect for Hydroponics and Soil gardens

It is recommended to use MasterBlend 4-18-38 in conjunction with Calcium Nitrate and Magnesium Sulfate (also available) in the following recipes...

**IMPORTANT! Do not mix the 3 components together! Doing so will cause nutrient lockout and all the nutrients will not be available to your plants. You can mix the MasterBlend and Epsom Salts together, but not the Calcium Nitrate! Ideally you should mix each component separately in your water until thoroughly dissolved before mixing the next component. DO NOT BUY KITS THAT ARE PREMIXED! 

It is recommended to use this product with Calcium Nitrate and Magnesium Sulfate
(Epsom Salt) in the following recipes. Please note using a scale is the most accurate way to measure, and volume measurements are only approximations:
5 Gallon Recipe: Add 12 grams
MasterBlend (approx 2 tsp) and dissolve
completely. Add 6 grams (approx 1.5-2
tsp) Magnesium Sulfate (Epsom Salt) and
dissolve in water. LAST, add 12 grams
(approx 2 tsp) Calcium Nitrate to 5 gallons
of water and dissolve completely. Adjust
your solution pH to the desired value.

5 Gallon Recipe:

12 grams (approx 2 tsp) MasterBlend 4-18-38 *Dissolve in water 1st
6 grams Magnesium Sulfate (Epsom Salt)(approx 1.5-2 tsp) *Dissolve in water 2nd
12 grams (approx 2 tsp) Calcium Nitrate (15.5-0-0) *ALWAYS MIX IN LAST

1 Gallon Recipe:

2.4 grams MasterBlend 4-18-38 *Dissolve in water 1st
1.2 grams Magnesium Sulfate (Epsom Salt) *Dissolve in water 2nd
2.4 grams Calcium Nitrate (15.5-0-0) *ALWAYS MIX IN LAST

Guaranteed Analysis

Total Nitrogen (N)................................................ 4%
    3.5% Nitrate Nitrogen
    0.5% Ammoniacal Nitrogen
Available Phosphate (P2O5)............................. 18%
Soluble Potash (K2O)........................................ 38%
Magnesium (Mg) (Total).................................. 0.50%
    0.50% Water Soluble Magnesium (Mg)
Boron (B)........................................................ 0.20%
Copper (Cu)..................................................... 0.05%
    0.05% Chelated Copper (Cu)
Iron (Fe)........................................................... 0.40%
    0.40% Chelated Iron (Fe)
Manganese (Mn)............................................. 0.20%
    0.20% Chelated Manganese (Mn)
Molybdenum (Mo)........................................... 0.01%
Zinc (Zn).......................................................... 0.05%
    0.05% Chelated Zinc (Zn)