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Humboldt Nutrients Master-A, 5 Gallon

Item #: HNMA420

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Humboldt Nutrients
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Master-A, 5 gal

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Humboldt Nutrients Master A/B Soil Nutrient Package
Humboldt Nutrients Master A/B Soil Nutrient Package
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NPK 4-0-3

Humboldt Nutrients Master A&B is a premium two-part fertilizer program designed for all plants made with non-toxic, high quality ingredients.

Humboldt Nutrients has formulated this vigorous 2-part nutrient solution for use on any plant, in any growing medium and contains no EDTA’s.

The Humboldt Nutrients team of chemists and agronomists emphasize balance and consistency with all our formulas. Master A&B is formulated to provide your favorite plants with higher absorption of nutrients, vitamins, minerals and trace elements.

The Master A&B series stands apart from your standard base nutrient line by making macro and micro nutrients more available to your plant.

Used in conjunction with Humboldt Nutrients powerful additives we assure that your yields and quality will increase so dramatically, that your friends will call you simply, “The Master."

Use 1:1 Ratio with Master A&B as a two-part Base Bloom Nutrient. Adjust PPM higher in later stages of the bloom cycle to desired strength.

DERIVED FROM: Ammonium Nitrate, Potassium Nitrate, Calcium Nitrate, Sodium Molybdate, Calcium Carbonate, Sodium Borate, Iron, Zinc, Manganese, Boron and Molybendum.


Brand Humboldt Nutrients
Weight (lb.) 51.14
Height (in.) 14.5
Width (in.) 10
Length (in.) 10.5
Warranty Yes
Free Shipping No
Nutrient Application Hydroponic and Soil Nutrient
Nutrient Type Organic Based
OMRI Certified No
Nutrient Material Type Liquid

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