Located 10 miles ( 16 km ) northwest of Ullapool, Achiltibuie is home to the Hydroponicum, a garden where plants are grown using a hydroponic system, in water and without soil.

Without soil as a buffer, any failure to the hydroponic system leads to rapid plant death.

While Deep Water Culture involves the plant roots hanging down into a reservoir of water below, the term Bubbleponics describes a top-fed Deep Water Culture ( DWC ) hydroponic system.

Vermiculite holds more water than perlite and has a natural " wicking " property that can draw water and nutrients in a passive hydroponic system.

This water is led to a hydroponic system where the by-products from the aquaculture are filtered out by the plants as vital nutrients, after which the cleansed water is recirculated back to the animals.

* Horticulture Department, features state-of-the-art greenhouses that feature tempered glass, automatic thermal / shade curtains, high to the gutters, computer environmental controls, Netafim pressure-compensated irrigation system, semiautomatic photoperiod control area, ebb and flood bench area, tropical foliage collection, hydroponic tomato production area, cut flower production area, orchid breeding stock, hibiscus grafting stock, and our pair of department mascot iguana!

One of the most obvious decisions hydroponic farmers have to make is which medium they should use.

In contrast, conventional hydroponics cannot use organic fertilizer because organic compounds in the hydroponic solution show phytotoxic effects.

Other efforts include effective land use by growing crops in greenhouses using hydroponic techniques and development of techniques for safe products.

This is in part to force Earth to make necessary reforms, the use of robots, hydroponic agriculture, and population control.

Creative House also features a small exhibit of NASA hydroponic growing units, which were developed for use on extended-length space journeys.

Grocers in test markets have said that the lettuce sells " very well ", and the farmers claim that their hydroponic lettuce uses 90 % less water than traditional soil farming .< ref > Murphy, Katie.

Since inventor Richard Stoner commercialized aeroponic technology in 1983, aeroponics has been implemented as an alternative to water intensive hydroponic systems worldwide.

The hydroponic method of plant production by means of suspending the plant roots in a solution of nutrient-rich, oxygenated water.

Baked clay pellets, are suitable for hydroponic systems in which all nutrients are carefully controlled in water solution.

Being semi-aquatic, watercress is well-suited to hydroponic cultivation, thriving best in water that is slightly alkaline.

Garden cress is suitable for hydroponic cultivation and thrives in slightly alkaline water.

Some missions have also set up hydroponic gardens that grow plants without soil.

Some properties grow hydroponic produce.

Hoagland and Arnon found that hydroponic crop yields were no better than crop yields with good-quality soils.

The various hydroponic media available, such as expanded clay and coconut husk, contain more air space than more traditional potting mixes, delivering increased oxygen to the roots, which is important in epiphytic plants such as orchids and bromeliads, whose roots are exposed to the air in nature.

Sea breezes washed nutrients on crops planted on sand dunes, much as now is done through roots in hydroponic gardens, and cotton and tobacco thrived ; farmers from Loris, Gallivant ’ s Ferry, Florence and other low-country towns bought land on the coast for practical reasons and then spent summers with their families there, rather than stay in the hellish heat and sand fleas of their main farms.

Modern hydroponic farming produces very high yields in greenhouses without using any soil.

Other agricultural areas include alpaca, buffalo, berry, fish, goat, hydroponic, nut, olive, and specialised game fowl farming, as well as wineries.

Hashtgerd possesses among others an industrial city, the Hashtgerd International Studios, a hydroponic farming complex, a Center for Agricultural Research and Nuclear Medicine and the Iranian Garden Museum.

It is believed that much of the cannabis currently sold for export originates from hydroponic grow-ops in the Lower Mainland, with significant amounts still added by outdoor growers throughout the province.

Once considered as waste material, pith is now being used as mulch, soil treatment and a hydroponic growth medium.

The Nutrient film technique is a variation of hydroponic technique.

The term aquaponics is a portmanteau of the terms aquaculture and hydroponic.

Finally, there is economic potential for methane generation, market crops such as flowers, fish, tomatoes, lettuce and other foods tolerant of hydroponic conditions, useful plants or medicinals.

Under hydroponic conditions, sprouted fodder at tall with a root mat is at its peak for animal feed.

In hydroponic growing, the nutrient solution is best at 5. 2 to 5. 8, making Cannabis well-suited to hydroponics because this pH range is hostile to most bacteria and fungi.

* Skunk-explores the effects that smoking the hydroponic weed ‘ Skunk ’ has on young people, how their families are affected and why this is becoming a bigger and bigger issue today.

The Mashantucket Pequot also raised swine, and opened a hydroponic greenhouse.

Neoprene root covers also help block out light from entering the rooting chamber of hydroponic systems, allowing for better root growth and to help deter the growth of algae.

His government also partnered with Philip Sprung to build hydroponic greenhouses on the island and sell cucumbers in Atlantic Canada and the eastern United States.

Slow sand filters now are also being tested for pathogen control of nutrient solutions in hydroponic systems.

The Morlocks in the Ultimate Marvel universe have a more sophisticated underground living situation that the mainstream Morlocks, including at least one mutant with energy-generating powers to provide electricity, hydroponic gardens to provide or supplement their food supply, and external air-exchange vents.

When the authorities raid the gathering, Mannie flees with Wyoming (" Wyoh ") Knott, a statuesque blonde agitator, whom he introduces to Mike and with whom he goes to see his former teacher, the elderly Professor Bernardo de la Paz, who claims that Luna must stop exporting hydroponic wheat to Earth or its resources will be exhausted.

The Land Pavilion at Walt Disney World's EPCOT Center opened in 1982 and prominently features a variety of hydroponic techniques.

In recent decades, NASA has done extensive hydroponic research for their Controlled Ecological Life Support System or CELSS.

Also, many hydroponic plants require different fertilizers and containment systems.

For all techniques, most hydroponic reservoirs are now built of plastic, but other materials have been used including concrete, glass, metal, vegetable solids, and wood.

Advantages include its proven efficiency and effectiveness as a commercial hydroponic substrate.

Numerous ' recipes ' for hydroponic solutions are available.

Although pre-mixed concentrated nutrient solutions are generally purchased from commercial nutrient manufacturers by hydroponic hobbyists and small commercial growers, several tools exists to help anyone prepare their own solutions without extensive knowledge about chemistry.

In organic hydroponics, organic fertilizer can be added in the hydroponic solution because microorganisms degrade organic fertilizer into inorganic nutrients.

A hydroponic farmer in Virginia has developed a calcium and potassium enriched head of lettuce, scheduled to be widely available in April 2007.

A number of hydroponic experts are now promoting hydroponic solutions as cheap ways of producing food in areas with bad soil.