Any info on the conc. to use for hydroponic solution?

I use 12 grams of this fertilizer with 12 grams of calcium nitrate, and 6 grams of Epsom salt for every 5 gallons of water. In my hydroponic system. It works great.

Once mixed with water can this be sprayed on the tomato leaves?

Yes, that's actually the best way to apply it.

Drip system in garden

I have two gardens - an in ground raised bed with drip irrigation and a hydroponic tank with drip irrigation. The fertilizer for the in-ground is hand fed by pouring around the roots but the hydroponic is on a timer pump for 3 timews a day. Garden gets timer watered twice daily. Hyfroponic out produces the raised bed by 4 times I'd say. Both are fun.

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Greenway Biotech, Inc. Tomato Fertilizer 4-18-38 Powder - Water Soluble with Chelated Micronutrients for Tomatoes Peppers Eggplant - Bigger Fruit Better Flavor - Hydroponics or Soil - 2 LB

Greenway Biotech, Inc. Tomato Fertilizer 4-18-38 Powder - Water Soluble with Chelated Micronutrients for Tomatoes Peppers Eggplant - Bigger Fruit Better Flavor - Hydroponics or Soil - 2 LB

Product ID: 17618951

Details

Brand
Greenway Inc.
Item Form
Powder
Item Weight
2 pounds
Liquid Volume
2 liters
Specific Uses For Product
Hydroponic

🍅4-18-38 NPK for max fruit growth

💧100% water soluble, no clog

🧪Chelated micronutrients for pH 4-9

AR$184549

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Description

🍅 Grow Bold, Flavor Rich, and FOMO-Worthy Fruits Every Season!

PURITY YOU CAN TRUST - CDFA-registered and independently tested for heavy metals, ensuring safe, professional-grade quality.
VERSATILE HYDRO SOIL USE - Dissolves fully in water for drip irrigation, foliar sprays, hydroponics, and soil applications—no clogging guaranteed.
CHELATED MICRONUTRIENT BOOST - Iron, Manganese, Zinc & Copper stay plant-available across diverse pH levels, preventing nutrient lockout.
PRECISION NIGHTSHADE FORMULA - Optimized 4-18-38 NPK ratio fuels bigger, tastier tomatoes, peppers & eggplants without excess foliage.
ALL IN ONE NIGHTSHADE SOLUTION - One formula supports your entire nightshade garden from heirloom tomatoes to hot peppers and potatoes.

Greenway Biotech's Tomato Fertilizer 4-18-38 is a professional-grade, water-soluble powder designed specifically for nightshade crops. Its high potassium formula promotes larger fruit with enhanced flavor and shelf life, while chelated micronutrients ensure nutrient availability across a wide pH range. Suitable for hydroponic and soil systems, this 2 lb powder is rigorously tested for purity and trusted by growers since 1989.

Specifications

ASIN	B0134CAZTG
Best Sellers Rank	#270,794 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #3,862 in Garden Fertilizers
Brand	Greenway Biotech, Inc.
Brand Name	Greenway Biotech, Inc.
Coverage	Full
Customer Reviews	4.5 out of 5 stars 172 Reviews
Item Form	Powder
Item Weight	2 pounds
Liquid Volume	2 liters
Manufacturer	Greenway Biotech, Inc.
Mixing Ratio	1669.1:1
Model Number	7.01749E+11
Number of Items	1
Part Number	7.01749E+11
Specific Uses For Product	Hydroponic,Hydroponics
Target Species	tomatoes
UPC	701748873948
Unit Count	32 Ounce

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AR$184549

Duties & taxes included

In stock

Sold byAmazon ArgentinaDelivered 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 Argentina.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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