The Kratky Method Of Hydroponic Gardening

The Kratky Method Of Hydroponic Gardening

The Kratky Method Of Hydroponic Gardening. There are numerous types and sizes of hydroponic systems. While they all share some similarities, the Kratky hydroponics technique stands out from the crowd. With this straightforward hydroponic technique, you can create an entirely passive system without using any electricity.

The Kratky Method Of Hydroponic Gardening
The Kratky Method Of Hydroponic Gardening

Do you need a Kratky hydroponic system? What you need to know about the hydroponic Kratky method is provided below.

First, what exactly is the Kratky Method?

Benard Kratky, a researcher emeritus at the University of Hawaii, created the Kratky method. He has spent decades conducting experiments, writing numerous publications, and researching passive hydroponics.

How Hydroponics Works According to The Kratky Method

Although there are different ways to set up a Kratky hydroponic system, they all operate on the same principal. Since Kratky hydroponic systems don’t use electricity, there aren’t any pumps for the water or air. The water level in the reservoir decreases as the plant absorbs the nutrient solution, allowing air to reach the root system.

The plant may be ready for harvesting when the nutrients are running low, depending on the species of plant and the size of the reservoir. More nutrients can be added as necessary if the plant is not yet ready for harvest.

It’s crucial to leave a space empty for the plant roots to breathe when more water is added to the reservoir. The plant will be drowned if the reservoir is full and the majority of its root system is submerged in the nutrient solution.

What Plants Do Kratky Hydroponic Systems Grow Well?

The Kratky Method of hydroponics can be used to grow any kind of plant that isn’t a root vegetable. Some simply develop faster than others.

Kratky systems are ideal for growing herbs and leafy greens like lettuce.It can be a little trickier to grow fruiting plants. Because they will consume more nutrients and need more air at the root system, they need to be in larger systems. For the flowering and fruiting stages, the nutrients must also be changed.

Benefits of Applying the Kratky Method

Let’s talk about the advantages of using the Kratky method in your hydroponic garden now that you understand what it is and how a Kratky system functions.

No electricity required—The Kratky hydroponic system’s main advantage is that it doesn’t require electricity, making it the ideal hydroponic system for people who live in places without access to electricity. In places where they might not have otherwise had the option of a garden, survivalists, people who live in remote locations, and residents of underdeveloped regions have been able to grow fresh produce.

Low upkeep—Those who have access to electricity can still profit from the Kratky Method. This hydroponic system is perfect for those looking for a hands-off hydroponic system due to the nature of how it functions. The only thing to keep an eye on is the nutrient level, and when the system starts to run low, add more.

Low initial and ongoing costs: Using a Kratky hydroponic system also has the advantage of being relatively inexpensive. Because this system does not necessitate the purchase of pumps, hoses, or timers, you can save money and worry less about the cost of maintaining or replacing the hydroponic system’s components.

The Negative Effects of the Kratky Method

While a Kratky hydroponic system has many advantages, there are also a number of disadvantages to using this type of hydroponics.

Because it is more difficult to control when your system is exposed to the elements outdoors, the Kratky Method of hydroponics works best when it is covered.This particular hydroponic system performs best inside, in a greenhouse, or in a covered space.

It’s crucial to prevent rainwater from entering your reservoir, which may happen if it’s left outside in the weather. The pH of the nutrient solution can change and be diluted by rainwater.

Larger plants develop more slowly

In my experience, larger plants developed more slowly when cultivated using the Kratky Method than when cultivated using other hydroponic techniques. Additional oxygen in the root zone is extremely beneficial to plants.

Water that is stagnant: Pests may be drawn to stagnant water. Make sure your system’s lid fits tightly and that there isn’t much space for pests to enter the reservoir.

Root rot can develop in warm, stagnant water conditions. I advise only adding enough nutrient solution to cover 25% of the root system of those larger fruiting plants that require their nutrient tanks to be filled, leaving the remainder in an open-air gap.

Quality water is required to begin with: In an ideal world, quality water would be the first step.When applying the Kratky Method, it becomes even more crucial. Your plants may be stunted by salt buildup and pH imbalances.

Temperature control can be more difficult because of the way Kratky systems are constructed. The reservoir’s temperature fluctuations can be minimized by burying or covering it.


Many people, especially those without access to electricity or those seeking a low-maintenance hydroponic system, may find the Kratky Method of hydroponics to be a fantastic option. They are excellent at producing leafy greens, and with a little more effort, they can also produce some fruiting vegetables.

FAQ: The Kratky Method Of Hydroponic Gardening

How is the Kratky Method performed?

The Kratky Hydroponic Gardening Method All of these nutrients are provided to plants using the Kratky method in a straightforward manner: nutrients are added to the container or reservoir. Plants are suspended above the water in a net pot with growing medium (such as hydroton, rockwool, etc.) inside. The Kratky Method: Passive Hydroponic Food Production

How are the ingredients for Kratky combined?

The Kratky Hydroponic Gardening Method The ingredients must be combined in a particular order. The MasterBlend should first be dissolved in the water. The magnesium sulfate is then added. Add the calcium nitrate last. Dry Supplements Water, 1 gallon. MasterBlend in 2G, 4-18-38 Magnesium Sulfate, 1 g (Epsom Salt) Calcium Nitrate, 2 g (15.5-0-0) Salts, liquids, and more in the Kratky Hydroponics Nutrients Guide

What makes the Kratky method so crucial?

The Kratky Hydroponic Gardening Method In comparison to conventional soil farming techniques, Kratky hydroponics increases plant production by 20–25%. This is due to plants’ increased ability to absorb organic nutrients, which boosts growth and yield. The Kratky Method’s organic hydroponic nutrients have the following 10 benefits:

Who developed the Kratky technique?

The Kratky Hydroponic Gardening Method Robert Kratky The approach is named after University of Hawaii researcher Bernard Kratky, who first suggested it in the 2009 issue of Acta Horticulturae. Kratky talks about using floating pallets to produce commercial food in the article. Wikipedia: Kratky method

Does the water in Kratky get changed?

How is the Kratky Method performed? Passive hydroponics is a type of the Kratky technique. Neither the water needs to be changed nor is the plants’ need for fresh oxygen a concern. The water level drops as the plant expands, giving the roots a space to breathe. The nutrient-rich water is almost completely consumed by the time the plant is ready to be harvested. Seven Important Facts About the Kratky Gardening Method

How can algae in Kratky be avoided?

How is the Kratky Method performed? Controlling algae is possible by using an algae-control solution or by introducing a small amount of bleach to the water. Algae can also be taken out of the water manually by being scooped up.

How are the nutrients combined for Kratky?

The best time to completely replace the water in your hydroponic system is after you have topped it off enough times to fill it up. You’ll most likely need to change your water every two to three weeks for a hydroponic system of average size. Hydroponics: How Often Should You Change the Water? Blog: FloraFlex

How can root rot be prevented in Kratky?

How are the nutrients combined for Kratky? preventing root rotMaintain reservoir temperatures at levels that will encourage uncontrolled microbial growth. Under 70 °F (21 °C) is ideal.Add the appropriate beneficial microbes to your growing medium. Avoid algae in hydro. Maintain cleanliness in Kratky and alter your nutrient solution if microbe growth is evident. Curious Cultivations | Root Rot Treatment

Can you use the Kratky method to grow tomatoes?

How are the nutrients combined for Kratky? With hydroponics, you can grow tomatoes anywhere. Due to the lack of a pump system, the Kratky method is the simplest to set up. With hydroponics, you can grow tomatoes anywhere. Due to the lack of a pump system, the Kratky method is the simplest to set up. A Step-by-Step Guide to Hydroponic Tomato Growing

Why are hydroponic plants unhealthily growing?

What makes the Kratky method so crucial? You must pay attention to the temperature of the nutrient solution if you want to guarantee a secure and healthy growth cycle. If you don’t maintain the ideal climate, your hydroponic plants may wilt or your fruits may spoil because their temperature needs are different from those of soil-grown plants. A Growers’ Guide to the Safety of Hydroponic Nutrients – GAIACA

What are the top three drawbacks of hydroponics?

What makes the Kratky method so crucial? Five disadvantages of hydroponics: it is expensive to set up.A hydroponics system is more expensive to buy and construct than a conventional garden. exposed to power outages requires ongoing maintenance and monitoring. illnesses caused by water. Plants experience issues more quickly. Hydroponics Benefits and Drawbacks: Trees

Can I apply the Kratky method to soil?

What makes the Kratky method so crucial? The Kratky Method is ideal for you if you want to garden easily. With this technique, you can grow vegetables without soil by using hydroponics. For those who want to garden but don’t have a lot of time or space, it’s a fantastic option. 5 Hydroponic Vegetables to Grow with the Kratky Method

Kratky needs how much fertilizer?

Who developed the Kratky technique? For the remaining volume of nutrient solution, add at a rate of 8 mL per 4 liters (1 gallon) (not the initial volume of solution you started the plants out with). Using 3-Part Hydroponic Nutrient Solutions and the Kratky Method

Does Kratky outperform DWC?

Who developed the Kratky technique? That depends on your preferences and goals. A Kratky system might be a good option if you’re looking for a straightforward system that doesn’t need a lot of equipment. A DWC system might be a better choice if you’re looking for a system that has the potential to yield high yields. The Kratky and DWC Hydroponic Systems Difference

What hydroponic technique is the best?

Who developed the Kratky technique? The top 5 hydroponic growing techniques are listed below, starting with the setups advised for beginners: Wick Method. Due to the lack of moving parts, this system is the most straightforward. Drinking Culture Drip Arrangement flow and ebb. Nutritional Film Method Top 5 Hydroponic Growing Techniques | MadgeTech