Hydroponics System
Hydroponics gardening is an innovation of cultivating plants soil-less. Its applications can be traced back to ancient times in China and Babylon. And it was not until many decades earlier when scientists allotted due attention to it.
Today, hydroponic gardening uses different systems which can be differentiated by being passive and active.
In passive hydroponics system, the nutrients essential for plant growth are delivered using a growing medium. The plant?s growth rate is slow because many of the nutrients are accumulated in the growing medium and cannot be absorbed entirely by the plant roots.
The active hydroponic system is opposite. To deliver the nutrients, a pump is required, thereby, ensuring that the plants absorbed the nutrients very well. As a consequence, the plants grow rapidly and healthily.
The hydroponic system is further classified between recovery and non-recovery. A recovery system is that which its nutrients are recyclable.
The nutrients in non-recovery are not. Thus far, the hydroponics systems are wick, ebb and flow, nutrient film technique, deep water culture, and aeroponics.
The simplest type is the wick system. It does not have moving components. Its mechanisms are similar to an oil lamp or tike torch, whereby, the liquid is dry up by wicking it up.
Many enthusiasts use different materials and different ways in making a wick system, its principle remains the same. A wick system is passive and non-recovery type.
Ebb and flow system requires a submersible water pump such as those of a fountain pump and household light timer to run the cycles.
It has a reservoir where the nutrient solution is stored and which is placed below the plants. The timer works together with the water pump. It sets schedules in releasing the nutrient solution. It is active and recovery type.
Nutrient film technique ? another recovery and active type of hydroponics system is the nutrient film technique in which, the plant roots are suspended in a grow tube.
The grow tubes are positioned in a certain angle so that the nutrient solution is recycled as they go through the roots and back to the reservoir. It uses air stones to supply the needed oxygen requirement.
Deep water culture ? it is also a simple system after the wick. In this system, the plant roots are suspended directly into the nutrient solution.
It uses a growing medium like a Styrofoam rafts so plants can be placed onto and hence floats on the water. Air stones too are used in the nutrient reservoir.
Aeroponics The plants in aeroponics system are suspended on top of a reservoir. It uses the same principles in water-based hydroponics and air vapors which are created from nutrient solution and sprayed in the reservoir to engulf the dangling plant roots.
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