What is the Nitrogen break down on the label?

NPK of Base A and B is 4-0-1 and 1-4-2, respectively, from Nitrate Nitrogen.

How do I know how much to use in my tower garden?

We used 400 ml each if tub is full (20 gallon) to start. Then 200 ml once a week and that worked for us. If your plants aren’t producing they may need more nutrients.

Is this post sold as 2 32 oz containers of base a and base b? or two 16 oz containers of base a and base b?

It is 2 bottles each contains .946 liters or 32 ozs

Does this nutrient line work well in soil?

I have been using these along with Golden Tree, SuperThrive, Heavy Boost & an enzyme blend. I use this combination every other watering. The alternate watering I use the Fox Farm nutrients. Last crop was excellent. This crop may be even better! Will most likely continue using these 2 nutrient sustems.

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Humboldts Secret Base A & B Liquid Fertilizer, Hydroponic, 32 Ounce Set

Humboldts Secret Base A & B Liquid Fertilizer, Hydroponic, 32 Ounce Set

Product ID: 716798130

Details

Brand
Humboldts
Item form
Liquid
Item weight
1.81 kg
Liquid volume
64 Fluid
Specific uses for product
Hydroponics

🌿Complete NPK + Ca & Mg blend

💧pH-balanced & fully water-soluble

⚖️Simple 1:1 mix ratio

Description

🌱 Unlock the secret to unstoppable growth—feed smarter, grow stronger!

UNIVERSAL COMPATIBILITY - Optimized for hydroponics, soil, coco coir, aquaponics, and more—perfect for any grow setup from home gardens to commercial operations.
CLEAN EFFICIENT FORMULA - pH-balanced and fully water-soluble to prevent clogging and residue, ensuring smooth delivery whether hand-watering or using automated systems.
EFFORTLESS FEEDING ROUTINE - Simplify your plant care with an easy 1:1 Base A & B mix—no guesswork, no complicated schedules, just consistent weekly nutrition.
ALL IN ONE NUTRIENT POWERHOUSE - Fuel your plants with a premium full-spectrum formula including nitrogen, phosphorus, potassium, calcium, and magnesium for vibrant growth and bold blooms.
VISIBLE RESULTS IN JUST ONE WEEK - Experience stronger roots, lush leaves, and vibrant flowers quickly—join thousands of growers upgrading their yields and plant health.

Humboldts Secret Base A & B is a premium two-part liquid fertilizer delivering a balanced blend of essential nutrients including NPK, calcium, and magnesium. Designed for hydroponic and soil-based systems alike, its pH-balanced, fully water-soluble formula mixes easily in a simple 1:1 ratio, supporting all plant stages from seedling to bloom. Trusted by home growers and professionals, it ensures consistent, visible improvements in plant vitality, growth, and flowering with minimal effort.

Specifications

ASIN	B01IM88KKI
Brand Name	Humboldts Secret
Coverage	Medium
Customer Reviews	4.5 4.5 out of 5 stars (3,220)
Item Form	Liquid
Item Highlight	Complete NPK Formula, pH-Balanced, Supports Vegetative Growth & Flowering, Indoor & Outdoor Plants, Easy Two-Part Feeding
Item Weight	1.81 kg
Liquid Volume	64 Fluid Ounces
Manufacturer	Humboldts Secret
Mixing Ratio	1:1
Model Number	4316245515
Number of Items	1
Part Number	4316245515
Specific Uses For Product	Hydroponics
Target Species	Plants
UPC	648260730437
Unit Count	64 Milliliters

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