---
product_id: 38707094
title: "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 - 25 LB"
brand: "greenway biotech, inc."
price: "2610.36 DT"
currency: TND
in_stock: true
reviews_count: 8
url: https://www.desertcart.tn/products/38707094-greenway-biotech-inc-tomato-fertilizer-4-18-38-powder-water
store_origin: TN
region: Tunisia
---

# 4-18-38 NPK ratio 100% water soluble Chelated micronutrients 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 - 25 LB

**Brand:** greenway biotech, inc.
**Price:** 2610.36 DT
**Availability:** ✅ In Stock

## Summary

> 🍅 Grow like a pro—unlock your garden’s full potential!

## Quick Answers

- **What is this?** 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 - 25 LB by greenway biotech, inc.
- **How much does it cost?** 2610.36 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/38707094-greenway-biotech-inc-tomato-fertilizer-4-18-38-powder-water)

## Best For

- greenway biotech, inc. enthusiasts

## Why This Product

- Trusted greenway biotech, inc. brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Pure & Safe:** Heavy metal-free for clean, healthy harvests you can trust
- • **Multi-Use Flexibility:** Perfect for soil, hydroponic, aeroponic, and foliar feeding setups
- • **Precision NPK Balance:** Optimized 4-18-38 formula fuels vibrant flowering & fruiting
- • **Micronutrient Powerhouse:** Chelated iron, manganese, zinc, copper, boron & molybdenum for peak plant health
- • **Flavor-Boosting Potassium:** High potassium content enhances tomato taste and quality

## Overview

Greenway Biotech’s Tomato Fertilizer Powder delivers a scientifically balanced 4-18-38 NPK ratio enriched with essential chelated micronutrients. This 100% water-soluble, heavy metal-free formula supports robust flowering, fruiting, and superior tomato flavor. Versatile for soil and advanced growing systems, it’s designed for growers who demand premium results.

## Description

Full description not available

## Features

- Optimal 4-18-38 Ratio: Perfect balance for flowering and fruiting stages of nightshade crops.
- Complete Micronutrient Package: Chelated iron, manganese, zinc, copper plus boron and molybdenum
- Heavy Metal-Free: Pure ingredients for safe, healthy produce.
- Very High Potassium Content: Enhances fruit quality and flavor.
- Versatile Application: Suitable for soil, hydroponic, aeroponic, and foliar feeding.

## Product Details

- **Brand:** Greenway Biotech, Inc.
- **Item Weight:** 25.2 Pounds
- **Item Form:** Powder
- **Liquid Volume:** 1 Liters
- **Specific Uses For Product:** Hydroponic,Hydroponics

## Images

![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 - 25 LB - Image 1](https://m.media-amazon.com/images/I/81ZlMAD2X8L.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Does anyone know how much to put in per gallon for a Hydroponic setup?**
A: This is for 5 gallons. I have been using this for tomatoes works great. 12 grams of the fertilizer. 12 grams calcium nitrate. 6 grams Epsom salt . You need gram scales. 28 grams in an ounce so not hardly half an ounce

**Q: I'm growing tomatoes and peppers in 20 gal. containers, what else do I need to go with this fertilizer?**
A: Calcium nitrate and Epsom salt is all that's needed along with this. If in soil no need for pH down but if you using soiless mediums then just pH down your solution about 1/4 teaspoon to 2mls hope this helps. :)

**Q: As side dressing when tomato plant is already producing large tomatoes, how to use? sprinkle on soil or mix in water and pour on soil around root??**
A: Hello,

You can use either way. 
If you would like to use for a liquid application you will need to dissolve 2.5 grams of fertilizer per gallon of water, and then poor onto soil.
Depending on the quality of the soil amounts vary, but one gallon of solution should be enough for about 15 to 20 adult tomato plants.

**Q: Can you put this straight into the reservoir of wicking tubs?**
A: Hello,

You can add it straight to the tubs but we usually recommend dissolving in a bit of water first for easier mixing.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Tomatoes are in constant need of nourishment
*by P***N on May 17, 2023*

The Biotech product is water soluble and can be applied in a dedicated pump up sprayer. Tomatoes have a relatively short growing season and are in constant need of replenishing nutrients and trace minerals to support such rapid growth and prolific fruit production. The NPK balance of the Biotech product ensures you do not get more N than P and K. Nitrogen is best applied as a Calcium Nitrate about every three weeks to help with growth as wells as prevention of blossom end rot due to calcium deficiency. The P and K help with fruit production and root development and are essential to producing a good crop.

### ⭐⭐⭐⭐⭐ My favorite so far.
*by A***R on January 13, 2017*

I have used this for the past few months as a base for all plants in my hydroponic garden. It is easy to mix and completely dissolves without using alot of mixing. As a general nutrient, I add calcium nitrate and magnesium sulfate differently for each plant. PPM / EC results are very predictable and accurate as described on the instructions. My mixes vary from EC 0.8 to 4.5 and I can hit the mark every time. PH does not go wild with this, it usually finished between 5.8 and 6.1 using Reverse Osmosis water. I have to do very little if any adjustments to the PH. Many liquid nutrients required heavy adjustments, not this. The resealable bag is rugged and designed to stand up without tipping or ripping. They do have a bulk option which I just purchased 25 lbs of each, tomato and calcium nitrate. It's the best so far. I grow tomatoes, bell peppers, Lettuce, cucumbers and flowers with this as a base for my hand mixed nutrients. Greenway Biotech is now my vendor for my nutrients.High quality at a reasonable price. You can't beat that.

### ⭐⭐⭐⭐⭐ For all bloomers and veggies
*by A***S on July 25, 2023*

I use this fertilizer on my roses and clematis as an amendment. It is wonderful. It is loaded with potassium which is what the plants need to produce flowers.

## Frequently Bought Together

- Greenway Biotech Tomato Fertilizer Powder 4-18-38 Plus Trace Minerals- 100% Water Soluble Includes Essential Chelated Micronutrients- (25 Pounds)
- Greenway Biotech Pepper & Herb Fertilizer 11-11-40 Powder with Micronutrients and Trace Minerals- 100% Water Soluble Fertilizers (25 Pounds Makes 5000 Gallons)
- Greenway Biotech Cucumber Fertilizer 8-16-36-100% Water Soluble Plus Chelated Micronutrients Suitable for Soil, hydroponics, and aeroponics - 2 Pounds (Makes ~400 Gallons)

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-02-01*