MasterBlend ALL PURPOSE 20-20-20 Fertilizer - PowerGrow EXCLUSIVE!

★★★★☆ 4.0 102 reviews

US$5.60
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US$5.60
Price when purchased online
Free shipping Free 30-day returns

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Management number 250735971 Release Date 2026/09/17 List Price US$5.60 Model Number 250735971
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MasterBlend ALL PURPOSE 20-20-20 fertilizer - EXCLUSIVELY available from PowerGrow Systems! MasterBlend fertilizers have been the go-to Hydroponic and Garden fertilizers for commercial growers for a long time. The NEW single step All Purpose 20-20-20 was specially formulated for PowerGrow Systems to provide a fully balanced all purpose fertilizer, is fully water soluble, does not require any other additives, and can be used with both Hydroponics and Soil gardening! 

  • MasterBlend 20-20-20 All Purpose Fertilizer is fully Water Soluble
  • Made by MasterBlend EXCLUSIVELY for PowerGrow Systems!
  • Highly concentrated! Just 2 tsp per gallon of water.
  • Master Blend fertilizer is perfect for Hydroponics and Soil gardens

Please note that using a scale that is accurate to grams is the best way to measure. If approximating, use the following guidelines:

1 tsp Masterblend 20-20-20 = Approx 5g

1 Gallon Recipe: Add 10 grams MasterBlend (approx 2 tsp) and dissolve completely. For soil, use every other watering. For Hydroponics, adjust pH after nutrients are dissolved in solution.

*For larger amounts, simply multiply the 1 gallon recipe to meet your needs.

Guaranteed Analysis
Total Nitrogen (N)................................. 20%
6.2% Nitrate Nitrogen
3.88% Ammoniacal Nitrogen
9.90% Urea Nitrogen
Available Phosphate (P2O5)................ 20%
Soluble Potash (K2O)........................... 20%
Magnesium (Mg) .................... 0.05%
0.05% Water Soluble Magnesium (mg)
Boron (B) ..................................... 0.0068%
Copper (Cu)................................... 0.036%
0.036% Chelated Copper (Cu)
Iron (Fe).............................................0.05%
0.05% Chelated Iron (Fe)
Manganese (Mn)............................0.0031%
0.0031% Chelated Manganese (Mn)
Molybdenum (Mo)..........................0.0009%
Zinc (Zn)........................................ 0.0025%
0.0025% Chelated Zinc (Zn)


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