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: 33267140

Details

Brand
Humboldts
Item Form
Liquid
Item Weight
4 pounds
Liquid Volume
64 fluid
Specific Uses For Product
Plant Growth

🌿Complete NPK + Ca & Mg formula

⏱️Simple 1:1 two-part mixing

⚖️pH-balanced for optimal uptake

€ 141.45

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Description

🌱 Unlock your garden’s secret weapon—grow smarter, not harder!

UNIVERSAL COMPATIBILITY - Perfect for hydroponics, soil, coco coir, pots, and raised beds—trusted by home growers and pros alike.
CLEAN CLOG FREE FORMULA - pH-balanced and fully water-soluble to keep your irrigation lines spotless and your plants thriving.
EFFORTLESS WEEKLY FEEDING - No guesswork—just mix equal parts Base A & B with every watering for consistent, hassle-free nutrition.
VISIBLE RESULTS IN 7 DAYS - Experience steady development and lush foliage fast—your garden’s secret weapon for professional-grade growth.
ALL IN ONE NUTRIENT POWERHOUSE - Fuel your plants with a full spectrum of essential macro and micronutrients for vibrant growth and bold blooms.

Humboldts Secret Base A & B is a premium 32-ounce liquid fertilizer set delivering a complete, pH-balanced nutrient formula optimized for hydroponic and soil gardening. Its easy 1:1 mixing system supports all plant types with essential macro and micronutrients, ensuring fast absorption, clean application, and visible growth results within a week.

Specifications

ASIN	B01IM88KKI
Best Sellers Rank	#14,049 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #420 in Garden Fertilizers
Brand Name	Humboldts Secret
Coverage	Medium
Customer Reviews	4.5 4.5 out of 5 stars (3,425)
Item Form	Liquid
Item Highlight	Complete NPK Formula, pH-Balanced, Supports Vegetative Growth & Flowering, Indoor & Outdoor Plants, Easy Two-Part Feeding
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 Fluid Ounces

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€ 141.45

Duties & taxes included

In stock

Sold byAmazon AustriaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Austria.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

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