La mencin de empresas especficas, marcas de productos o ciertas compaas manufactureras, no implica que ellas estn siendo recomendadas por la FAO, por sobre otras de la misma naturaleza y caractersticas, que no aparezcan indicadas en el texto. La Oficina Regional de la FAO para Amrica Latina y el Caribe autoriza la reproduccin fiel del contenido total o parcial de este libro, siempre que se haga sin fines comerciales y se mencione la fuente del documento. Se agradecer enviar a esta Oficina Regional un ejemplar del material reproducido. Sistema de recirculacin continua y sus elementos constituyentes: 1.

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The inner workings of the wick system. One key to success with a wicking system is to use a growing media that transports water and nutrients well. Good choices include coconut coir, perlite, or vermiculite. Larger plants may have a hard time getting enough of either via a simple wick system. In a DWC system, you use a reservoir to hold a nutrient solution. The roots of your plants are suspended in that solution so they get a constant supply of water, oxygen, and nutrients.

To oxygenate the water, you use an air pump with an air stone to pump bubbles into the nutrient solution. This prevents your roots from drowning in the water — a weird thing to think about, but it can and does happen to many beginner hydroponic gardeners. With some hydroponic growing media added into your net pots, they provide a home for the very beginning of your root system and plant stems. Benefits of Deep Water Culture Very inexpensive and easy to make at home Extremely low-maintenance Recirculating, so less wasted inputs Downsides of Deep Water Culture Does not work well for large plants Does not work well for plants with long growing period To learn even more: Check out the in-depth deep water culture guide or watch my video tutorial: Check out my video tutorial below: Nutrient Film Technique NFT Systems The Nutrient Film Technique, which I will refer to as NFT, is a popular commercial hydroponic system.

The simplest way to set up a NFT system. Plants are grown in channels that have a nutrient solution pumping through them and constantly running along the bottom of the channel. When the solution reaches the end of the channel, it drops back into a main reservoir and is sent back to the beginning of the system again. This makes it a recirculating system, just like deep water culture.

Plants are placed in these channels using net pots and growing medium and can be replaced or harvested on a one-by-one basis. An example of a commercial flood and drain system. Instead, you grow in a tray filled with a growing medium. After the tray is flooded, gravity drains the solution back down into the reservoir, where it is being oxygenated by an air pump and air stone. It sits there waiting for the next flood cycle, and the process goes on. Hydroponic growers choose ebb and flow systems for their flexibility.

Most of them will fill the tray with a growing medium of their choice and also add net pots to organize their plants and control the roots a bit more. A simple aeroponic system you can build at home.

An aeroponic system is similar to a NFT system in that the roots are mostly suspended in air. The difference is that an aeroponic system achieves this by misting the root zone with a nutrient solution constantly instead of running a thin film of nutrient solution along a channel. Some growers prefer to mist on a cycle like an ebb and flow system, but the cycle is much shorter, typically only waiting a few minutes between each misting. Aeroponic systems have been shown to grow plants even quicker than some of the simpler systems like deep water culture, but this has not been verified to be true in all cases.

If you want to experiment with this system, you will need specialized spray nozzles to atomize the nutrient solution. Benefits of Aeroponics Roots often are exposed to more oxygen than submerged-root systems Downsides of Aeroponics High-pressure nozzles can fail and roots can dry out Not as cheap or easy to set up as other methods To learn more, check out the video tutorial: Drip Systems Drip systems are extremely common in commercial operations, but less common in recreational gardens.

A basic hydroponic drip system. Benefits of Drip Systems High level of control over feeding and watering schedule Less likely to break.


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