In a Recovery Drip System the excess nutrient solution that runs off is collected back in the reservoir for re-use. The Non-Recovery System does not collect the run off. The non-recovery system needs to have a more precise timer so that watering cycles can be adjusted to insure that the plants get enough nutrient solution and the runoff is kept to a minimum.
This means that you can fill the reservoir with pH adjusted nutrient solution and then forget it until you need to mix more. A recovery system can have large shifts in the pH and nutrient strength levels that require periodic checking and adjusting. This is the kind of hydroponic system most people think of when they think about hydroponics.
The nutrient solution is pumped into the growing tray usually a tube and flows over the roots of the plants, and then drains back into the reservoir. The nutrient solution flows over the roots up to 24 hours per day. The plants are held up by a support collar or a grow-basket and no growing medium is used. There is usually no growing medium used other than air, which saves the expense of replacing the growing medium after every crop.
Plant is supported in a small plastic basket with the roots dangling into the nutrient solution. Oxygen is needed in the grow-tube so capillary matting or air stones must be used. The NFT system is very effective. Although, many novice hydroponic growers find it difficult to fine tune.
The roots dry out very rapidly when the flow of nutrient solution is interrupted. It can also be very unforgiving, with no growing medium to hold any moisture, any long period of interruption in the nutrient flow can cause the roots to dry out and the plants to suffer and possibly die. The aeroponic system is probably the most high-tech type of hydroponic gardening. Like the N. The roots hang in the air and are misted with nutrient solution.
The mistings are usually done every few minutes. Because the roots are exposed to the air like the N. A timer controls the nutrient pump much like other types of hydroponic systems, except the aeroponic system needs a short cycle timer that runs the pump for a few seconds every couple of minutes.
In this system, plant roots are misted with water and nutrients, while getting oxygen directly from the air. Aeroponics has been proven and refined for decades and is used by scientists around the world, including NASA. Using Aeroponics, plants:. The opportunity to grow fresh fruits and vegetables outside of the soil, indoors or outdoors, is becoming not only a distinct advantage, but also a necessity.
While we have learned much about this exciting method of growing, the benefits of Aeroponics are still largely untapped. It is believed that Aeroponics will soon be the most commonly used growing technique worldwide. What would you call a system that has a constantly circulated nutrient solution without the NFT film?
Both my systems are 40 ft long and doing great. Save my name, email, and website in this browser for the next time I comment. This site uses Akismet to reduce spam. Learn how your comment data is processed. Types of Hydroponics Systems. Solution culture does not use a solid medium for the roots, just the Nutrient Film Technique. Drip systems are probably the most widely used type of hydroponic system in the world.
Operation is simple, a timer controls a submersed pump. The timer turns the pump on and nutrient solution is dripped onto the base of each plant by a small drip line. In a Recovery Drip System the excess nutrient solution that runs off is collected back in the reservoir for re-use.
The Non-Recovery System does not collect the run off. The non-recovery system needs to have a more precise timer so that watering cycles can be adjusted to insure that the plants get enough nutrient solution and the runoff is kept to a minimum. This means that you can fill the reservoir with pH adjusted nutrient solution and then forget it until you need to mix more. A recovery system can have large shifts in the pH and nutrient strength levels that require periodic checking and adjusting.
This is the kind of hydroponic system most people think of when they think about hydroponics. The nutrient solution is pumped into the growing tray usually a tube and flows over the roots of the plants, and then drains back into the reservoir. There is usually no growing medium used other than air, which saves the expense of replacing the growing medium after every crop.
Normally the plant is supported in a small plastic basket with the roots dangling into the nutrient solution. The roots dry out very rapidly when the flow of nutrient solution is interrupted. The aeroponic system is probably the most high-tech type of hydroponic gardening. Like the N. The nutrient is pumped into the growing tray or a tube and delivered to the root systems of the plants.
The roots suspended above the water level, are constantly moisture and get plenty of oxygen from the air surrounding them. To provide oxygen in the water, and the grow tube, air stones or capillary matting must be placed in the reservoir. This also helps keep the system run for long without manually and frequently checking.
Since no growing medium is used, plants are usually held in a grow-basket or a supporting collar. Drip system pumps the nutrient solution through the tube and drops onto plant roots via a network of drip lines.
The action is often made automatical by a timer. They are among the most common types of hydroponic systems in the world, especially for commercial growers.
A timer is set to schedule the submerged pump. And with this line emitter for each plant, gardeners can adjust the amount of solution per plant they want. In a recovery drip system, the nutrient solution is sent back to the reservoir via the drip tray. However, while the recovery one can be more efficiently, and cost-effective by reusing the excess solution, non-recovery one needs less maintenance due to the same reason that solution is not recycled, and hence pH of the reservoir is not affected.
By this, gardeners can mix pH adjusted nutrient solution in the reservoir, and forget all about it, until they want to fill more. Meanwhile, with recovery, hydroponic gardeners need to check pH regularly. Since this is a drip system, slow draining medium is often used like Rockwool, coconut coir, or peat moss. Plant roots are suspended in the air and are misted with the nutrient solution continously. The misting interval is fairly short, done by a pump controlled by a timer.
But in Aeroponics, the nutrient solution is pumped and sprayed onto the root systems constantly instead of flowing through a thin film of nutrient by a channel. A timer is used to control the nutrient pump, but the cycle is much shorter compared to other hydroponic types.
Typically, it is a few minutes between each misting interval. Again, since the roots are exposed to the air, the roots will be dried out fast in case of a misting cycle interruption. And this system is not as cheap, and easy to set up as other types. Plants are placed in a net pot, hung by a floating platform.
Parts of the roots are submerged in the water while the rest are exposed to the air. Over time, when plants grow, the water level reduces, leaving an air zone for plant roots. A hands-off system.
The Kratky method is just a variation of the Deep Water Culture. What is different is that the Kratky does not use electricity to run. So no pump, no timer needed. Place plants in the net pot with growing media so that their roots are hung by the lid. They are partly exposed to the air while parts of them are sunk into the water.
That means plants are able to take up sufficient oxygen, water, and nutrient. Over a period of time, plants grow. They will drain the water, still leaving parts of their bare roots come into contact with the air. When the reservoir runs out of the water, your plants also have reached the end of their growth phase.
Otherwise, you can fill with water and nutrient solution, and allow plants continue to its growth phase. So in theory, the Kratky requires little care. It also does not cost much. That makes it one of the easiest system to set up, which is highly suited for starters, hobbyists, and children.
An aeroponics variation. A fogger, which can be connected to a timer, is used to transform water and added nutrients of the reservoir into super tiny small droplets or fog. Plants roots are hung freely in the air with plenty access to oxygen.
They get moisture and nutrient via the wet atmosphere of the fog. The so-called fog is just the humid environment produced by the foggers. Fogponics is an advanced form of aeroponics. If in aeroponics, growers use the water misting to provide water and nutrients for plants, in fogponics, the foggers are used. Unlike traditional Hydroponic forms where plant roots are not sunk into the air and get oxygen through the air pump, fogponics allows the roots to be bare into the air. They get necessary moisture and nutrients via the fog.
In the sense, plants can get great amounts of oxygen and water in fogponics, helping them focus on growing at a faster and stronger level. Because the way it works, fogponis is fairly suitable for growing many types of plants like green vegs, herbs, and especially seedlings, and cutting cloners. The fogponics also comes with some downsides, including certain initial investment, built up salt from the fogger, and they are quite vulnerable to the power outages.
0コメント