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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Base A & B Liquid Hydroponic Fertilizer | Complete Hydroponic Nutrients for Indoor and Outdoor Plants | Supports Healthy Vegetative Growth and Flowering Stage | 32 Ounce Set

Product ID: 33267140

Details

Brand
Humboldts
Item Form
Liquid
Item Weight
32 Ounces
Liquid Volume
64 Fluid
Specific Uses For Product
Hydroponics

🌿Full-spectrum NPK + Ca & Mg

💧64 fl oz liquid volume

⚖️1:1 precise mixing ratio

SAR 331

Duties & taxes included

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Description

🌱 Unlock your garden’s secret weapon for unstoppable growth!

ONE FORMULA EVERY PLANT - Supports healthy vegetative and flowering stages across all indoor and outdoor plants for visible, professional results.
CLEAN CLOG FREE FORMULA - pH-balanced and fully water-soluble to keep watering systems smooth and maintenance-free.
EFFORTLESS FEEDING ROUTINE - Simple 1:1 Base A & B mix saves time and eliminates guesswork for consistent weekly plant nutrition.
COMPLETE NUTRIENT POWERHOUSE - Delivers balanced nitrogen, phosphorus, potassium, calcium, and magnesium for vibrant growth and bold blooms.
UNIVERSAL GROWER COMPATIBILITY - Perfect for hydroponics, soil, coco coir, pots, and raised beds—trusted by home and commercial cultivators alike.

Humboldts Secret Base A & B is a 64-ounce liquid hydroponic fertilizer set delivering a complete nutrient profile with nitrogen, phosphorus, potassium, calcium, and magnesium. Designed for easy 1:1 mixing, it supports healthy vegetative and flowering stages in indoor and outdoor plants. Compatible with all growing mediums and systems, this pH-balanced, water-soluble formula ensures clean feeding without clogging, trusted by both home gardeners and commercial growers for consistent, vibrant results.

Specifications

ASIN	B01IM88KKI
Best Sellers Rank	#11,050 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #386 in Garden Fertilizers
Brand	Humboldts Secret
Brand Name	Humboldts Secret
Coverage	Medium
Customer Reviews	4.5 out of 5 stars 3,407 Reviews
Item Form	Liquid
Item Weight	4 Pounds
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	Plant Growth
Target Species	Plants
UPC	648260730437
Unit Count	64.0 Fluid Ounces

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