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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Tomato Fertilizer 4-18-38 Powder 100% Water Soluble Plus Micro Nutrients and Trace Minerals"Greenway Biotech Brand" 2 Pounds (Makes 400 Gallons)

Product ID: 127667914

Details

Brand
Greenway
Item Form
Powder
Item Weight
907 g
Liquid Volume
2 Litres
UPC
701748873948

🌱Enriched with micro nutrients & trace minerals

💧100% water soluble for instant nutrient delivery

⚗️Balanced 4-18-38 NPK ratio for optimal tomato growth

Description

🍅 Feed your tomatoes like a pro—grow envy-worthy harvests!

GENEROUS COVERAGE - 2 pounds makes up to 400 gallons—perfect for extensive home or professional gardens
ECO FRIENDLY EASY - Powder form dissolves quickly, minimizing waste and maximizing efficiency
MICRO NUTRIENT BOOST - Includes essential trace minerals for healthier, more resilient plants
PRECISION GROWTH FORMULA - High phosphorus and potassium (18-38) ratio supports robust flowering and fruiting
RAPID NUTRIENT ABSORPTION - Water-soluble formula ensures fast uptake and visible growth boosts

Greenway Biotech's Tomato Fertilizer 4-18-38 is a 100% water-soluble powder enriched with micro nutrients and trace minerals, designed to deliver precise nutrition for vigorous tomato growth. Each 2-pound pack makes up to 400 gallons of nutrient-rich solution, ideal for both home gardeners and professional growers seeking lush, high-yield crops.

Specifications

ASIN	B0134CAZTG
Brand	Greenway Biotech
Coverage	Medium
Customer Reviews	4.5 4.5 out of 5 stars (163)
Item Form	Powder
Item Weight	907 g
Liquid Volume	2 Litres
Model Number	7.01749E+11
Part Number	7.01749E+11
UPC	701748873948

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