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Types of Hydroponics Systems and How They Work
Hydroponics is a way of growing plants without the use of soil.
Basically there are 6 types of Hydroponics Systems including,
1) Water Culture
2) Wick System
3) Ebb & Flow System
4) Drip System
5) Nutrient Film Technique
Water Culture Hydroponics System
It is the simplest and oldest method among the all hydroponics systems. In this method reservoir fells by nutrient solution and allow the root surrounded by water. An air pump will supply the air to the air stone and bubbles the nutrient solution that helps in giving oxygen to plants. The disadvantage of this system is that it doesn't work well with large plants.
Wick Hydroponics System
Wick system is a passive hydroponics system means that there is no moving parts. A wick is used to transfer nutrients from reservoir to growth medium. This system can be used as a variety of growth medium. Pro-Mix and Coconut Fiber are the most popular growth medium in this method.
The disadvantage of this system is that it doesn't work well with large plants as large plants use large amount of nutrient water solution.
Ebb & Flow Hydroponics System
This method is used grow the plants in reservoir which full of nutrients solution and uses a pump with timer to deliver nutrients solution to the plants. Once it reaches a certain level the solution is drained away.
The main disadvantage of this method is that if there is any vulnerability in pump or timer failures, the entire system fails.
Drip Hydroponics System
Drip system is a most widely use system all over the world. Timer controls a submerged pump, when timer turn the submerge pump on nutrient solution and solution will be dripped on the base of plants by a small drip line.
There are two way to perform this technique – Recovery and Non-Recovery.
In Recovery Drip System nutrient solution that runs off is collected back in reservoir for re-use where in Non-Recovery Drip System does not collect the runs off.
Nutrient Film Technique (N.F.T)
This is an advance method in hydroponics systems, it doesn't require growth medium. N.F.T systems have a constant flow of nutrients solution so no need of timer for submersible pump. Nutrient solution pumps into the growing tray and flow over the root.
Air is only thing required as a growth medium for growing the plants so it decreases the expense of replacing the growing medium after every crop.
This is the most advance technique in all hydroponics systems. Like N.F.T system this system's growing medium is only air. The roots are hang in air and are misted with the nutrients solution. The misting is done every few minute by timer. The roots will dry out if the misting cycle gets interrupted.
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