With increasing pressure on global food supplies requiring ever more intelligent use of technology, urbanized vertical aeroponic methods are shaping up as a promising alternative to traditional farming. Aeroponics requires less space, less water and no pesticides and the AeroFarms system takes things further by using LEDs in stacked units to maximize efficiency and use of available space.
The AeroFarms system allows leafy greens and herbs in particular to be grown at room temperature indoors in urban environments. As soil is replaced by a proprietary reusable cloth growing medium, there's no washing of produce required, resulting in an increase in shelf-life of anywhere from one to four weeks depending on what's being grown. In addition, due to the indoor growing environment and shortened growth cycle, the lack of pests allows produce to be grown pesticide-free. Also, aeroponic methods use less than 20% of the water required by traditional agricultural methods and less than 80% of that required by hydroponic methods. Finally, transportation costs are almost negligible when compared to agricultural methods that make production in urban areas impossible.
One criticism often leveled at aeroponic systems that use artificial light is that a significant amount of energy is required. Aerofarms' seeks to minimize energy use through the use of LEDs which have nearly five times the life expectancy of High pressure sodium (HPS) lamps, can be placed closer to the plant (which assists in stacking) and can be designed to evenly distribute light to the crop. Aerofarms' has also conducted research into what specific wavelengths of light are required by growing plants. By using LEDs that target these wavelengths, it's thought that significant energy savings can be achieved.
It should be pointed out, however, that Aerofarms' system is not for hobby farmers. But if you're thinking of setting up a commercial farm in an urban setting, the company claims a 20 to 33% return on investment.
Nothing matters if the end result is that the vegetables aren\'t cheap. I have friends who tell me that $6.50 a dozen organic eggs are worth it. I don\'t care about that!!! I am talking about making food cheaper so that everyone all over the world gets a fair share.
I\'m going to think this is another case of \"Boutique Green\", not for everyone, for the \"High Life\" instead.
Sorry for the rant.
Dr.A.Jagadeesh Nellore(AP),India
This would be true even if the economy of scale thing does NOT bring the cost down to where the poor can afford aeroponically grown produce. Hopefully it would eventually do that too.
So lets stick them inside, and burn coal to produce electricicty, and wire it to bulbs for the plants to grow with. Yay - now instead of something that consumes CO2, we\'ve got something that *emits* 10 *times* more CO2 than it would have otherwise consumed.
(ten times; assumes coal power plant, typical transmission line losses, and extremely efficient lighting)
Did anyone else get a giggle at their deflection on that topic? They pretended that \"inefficient\" referred to the life expectancy of the bulbs, and ignored that actual meaning of the criticism.
If you use *more* carbon burning LEDs (currently over 100Lumens/Watt versus incandescant 20L/W), but grow faster (see article), then the extra energy *may* be offset by extra production. But I think most initial installations will use added sunlight through skylights since I think this depends on sealed chambers to keep the pests out.
When the cost of water goes up due to increasing scarcity, pesticide pollution finally becomes intolerable (should be already), and space is at a premium, then this type of technology will be not only beneficial, but preferred and required. Even the specific frequency LEDs (powered by solar!) will show their benefit in added growth efficiency.
I\'m not saying this is the answer for today, but the very near future, most likely.
Einstein said: \"Every great idea is met with violent opposition from meager minds\"
Look up-
SANYO to Provide Solar Panels and Lithium-ion Batteries
for Mitsubishi Chemical\'s \"40Ft container Vegetable Factory\"
And
Mitsubishi chemical Corp develops veggie growing shipping containers
For more information.
Mitsubishi Chemical sold a self contained shipping container farm to Qatar back in April 2010, so the concept of self contained vegetable factory is not hypothetical, it is reality.