Photos and texts published with permission from ilRospo.it

When Cortes took the concept of exporting democracy with the Aztecs found himself before a great people who appeared before him in all his power in Tenochtitlan, the great Aztec capital of the kingdom.

I will not dwell on the end of this people at the hands of the conquistadors, but one of the things that struck the soldiers simplest of these shipments murder on what a likely hired former peasant mob in Spanish had to do with his eyes remained presumably somewhat shaken .
The Aztec capital of the kingdom it built on some islets in Lake Texcoco and was therefore deficient in fertile soil in which to grow: a sin not just counting presumed lived in this city about 200,000 people. So an engineer with what nature had to offer, we theorized and began using a technique of cultivation "root floating" which consisted in the exploitation of the lake water through the construction of fertile floating islands. Real rafts of reeds tied together with reeds formed the backbone of this system therefore provided a thin strip of land located on rafts where to start sowing and then to find food plants in the water below.
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We receive and gladly publish this fine example of simplified hydroponics:

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photos: eurohydro.com

Whatever the technique of cultivation hygiene is always crucial.
In hydroponic systems special attention should be paid to the nutrient solution, which must be replaced regularly to avoid accumulation of salts, dirt and pathogens. Normally the discharge should be done approximately every two weeks, three if you work with reverse osmosis water, in a case of brackish water.
The intense heat may necessitate more frequent replacement parts.
The emptying of the plant may be difficult, usually taking place under these schemes:

-The tube that leads from the pump irrigation plant is equipped with a valve in line with the potential to divert the flow to the third exhaust pipe.

-The tank has a sloping bottom after which is a drain valve. By opening the valve the water flows through the force of gravity.

-Using a "bilge pump", practical and light can dive when needed in the tank by connecting a hose ready for discharge. Unfortunately this type of pumps always leave a stagnation of about an inch on the bottom, but can be used in combination with the previous method.

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photos: eurohydro.com

In recirculating systems the pH value should be measured on a daily basis, since changes in the nutrient solution made from the plants themselves can cause significant fluctuations.
In any case, it is essential to measure every time they are added to water or fertilizer.

To maintain stable acidity can resort to the use of nutrients that provide a " cushioning effect "or buffer , and temperature control (below 30 degrees) and humidity (above 50%) to reduce the 'excessive evaporation.

To make the measurement will proceed, as the EC, to mix the solution well and take a sample in a clean container.
And 'well not make measurements immediately after the addition of fertilizers or regulators.

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The plants escape from the nutrient solution fertilizers and water simultaneously, but not necessarily to the same extent.

In a hot climate such as plants tend to "drink" more, and together with the high evaporation rate makes this the concentration of nutrients is too high.
To maintain stable and under control the balance of the solution is necessary to monitor the EC or electrical conductivity.

This value is the only way we can determine exactly how many nutrients are still present in the water. A presence is too high can cause permanent damage to the plants, too few tracks bring deficiencies and development slowed.
To detect the EC using a special tool that indicates the amount of salts (total, therefore, without distinction) dissolved. There are several models of portable or fixed probes of various price ranges.

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Collect fruit and vegetables directly from the plant is the dream of many people who dream of organic food and contact with nature.
In 2019 this could become a reality in England, where the public can easily go to the supermarket and pick plants and trees as he pleases.
The idea of Futurlab, important company believes to have identified an area of attractive investment offering directly into the hydroponic retail shelves.
Within the retail areas would present greenhouse, where it grows mushrooms, strawberries, potatoes, peppers, lettuce, tomatoes, and more.
As in any produce department the customer will simply choose the products, weigh and place in basket.
The greenhouses in question are conceived as hydroponic / aeroponic and without the use of substrate.
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... And as often happens in these cases both start arm to the crowded shores of uselessness.

After the dramatic Hydroponic Garden , here here a new gadget dedicated to the cultivation of aromatic plants and flowers.

Would you have to expose critical eye of your guests trivial jars of earth? Maybe you would like to germinate in old, obsolete, aesthetically unfulfilling blocks of peat, rockwool or other practical materials?

Stains. The trend is that the object of design, then you spend your 35 pounds (40 euros, plus shipping) and buy yourself this object halfway between the toaster and electric kettle , which thanks to an advanced technology designed by even NASA (ie hydroponics) will allow your seeds to germinate (not listed).

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The merits dell'idroponica are well known to most people. Professionals, amateurs and even merely curious are combined in this technique every day thanks to the spread of idrosistemi easy to use and inexpensive.
Word of mouth and the easy availability of information and guides to help beginners learn the basics of soilless cultivation, to make informed purchases and getting the most out of their cultivation.
The wrath of lovers dell'idroponica was for years not being able to combine the performance and speed of their culture with a biological approach.
The specific hydroponic fertilizers are by definition in fact minerals or chemicals. The typical organic farming organic food tends to clog pipes and sprinklers, because of rather large particles suspended in solution. These particles may stagnate toward the bottom and rot, creating foul odors and the risk of contamination by pathogens.

The problem has been thoroughly studied by the leading General Hydroponics, which recently launched the first fertilizer with all the requirements to obtain organic certification, but suited to hydroponics: BioSevia.
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William Texier

During the past 20 years, advances in techniques of indoor cultivation have been so significant to develop the first prototype created for industrial use hydroponic systems to get the price and size of content, also suitable for simple fan that can safely use the balcony on porch, or at home in front of a window or under artificial light.
If space is available, there is no lack of supply systems from greenhouse, to enable a rich, healthy and abundant harvest, to be distributed among friends and acquaintances, or for resale. ... Read more

roots in the system amazon nutriculture

The term "hydroponics" (from the greek growing in water) is a technique that excludes agricultural roots contact with the ground.

The hydroponic ensure compliance with the richest traditional agriculture production, lower costs, quality control, water saving and respect for the environment.

And 'most common in countries such as Holland, which apply strict rules to prevent pollution of aquifers, and he experiences the particular application contexts: in polluted areas or radioactive (like Chernobyl), in arid areas of 'Africa, the bases in Antarctica and aerospace missions. Read more ...