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 Set of A & B Liquid Hydroponics Fertilizer - World's Best Nutrient System – Hydroponic Nutrients for Outdoor, Indoor Plants – Supports Vegetative and Flowering Stages of Plants

Humboldts Secret Set of A & B Liquid Hydroponics Fertilizer - World's Best Nutrient System – Hydroponic Nutrients for Outdoor, Indoor Plants – Supports Vegetative and Flowering Stages of Plants

Product ID: 716798130

Details

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

🌱Supports veg & flowering stages

💧64 fl oz liquid volume

⚖️1:1 precise mixing ratio

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Description

🌿 Unlock your garden’s full potential with zero hassle!

ALL STAGE PLANT SUPPORT - From seedlings to blooms, consistent results every week
UNIVERSAL COMPATIBILITY - Optimized for hydroponics, soil, coco coir & aquaponics
CLEAN EFFICIENT FORMULA - pH-balanced, water-soluble, no residue or clogging
COMPLETE NUTRIENT SPECTRUM - Balanced N-P-K plus calcium & magnesium for vibrant growth
EFFORTLESS FEEDING ROUTINE - Simple 1:1 mix eliminates guesswork and saves time

Humboldts Secret Base A & B is a premium two-part liquid fertilizer delivering a precise 1:1 mix of essential macro and micronutrients. Designed for hydroponic and soil-based systems alike, it supports all plant growth stages with a clean, pH-balanced formula that mixes easily and prevents clogging. Trusted by home growers and professionals, it ensures vibrant leaves, strong roots, and bold blooms across diverse plant types and growing environments.

Specifications

ASIN	B01IM88KKI
Brand Name	Humboldts Secret
Coverage	Medium
Customer Reviews	4.5 4.5 out of 5 stars (3,182)
Item Form	Liquid
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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Desertcart purchases this item on your behalf and handles shipping, customs, and support to Croatia.

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