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 clogging

🧪Chelated micronutrients for pH 4-9

AR$184914

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Description

🍅 Grow like a pro: Bigger fruit, bolder flavor, zero compromise!

CERTIFIED PURE SAFE - CDFA-registered and heavy metal tested for professional-grade confidence
MICRONUTRIENT POWERHOUSE - EDTA-chelated Iron, Manganese, Zinc & Copper ensure nutrient uptake in any pH
SEAMLESS HYDRO SOIL USE - Dissolves fully for drip, foliar, NFT, DWC & Dutch bucket systems—no clog, no fuss
ONE FORMULA ALL NIGHTSHADES - Perfect for tomatoes, peppers, eggplants, potatoes & more—simplify your garden care
PRECISION NIGHTSHADE NUTRITION - Tailored 4-18-38 formula boosts fruit size & flavor without excess foliage

Greenway Biotech's Tomato Fertilizer 4-18-38 is a premium, water-soluble powder designed specifically for nightshade crops. Its high potassium formula promotes larger, tastier fruit while low nitrogen limits excessive leaf growth. Enriched with chelated micronutrients for optimal absorption across a wide pH range, it works flawlessly in both hydroponic and soil systems. Independently tested and CDFA-registered, this 2 lb pack delivers professional-grade purity and versatility for all your nightshade gardening needs.

Specifications

ASIN	B0134CAZTG
Best Sellers Rank	#184,451 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #2,984 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$184914

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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