Courtesy: Omega Gardens
Based on similar NASA research for feeding astronauts in a confined space, the rotating hydroponics garden that we employ is a gravity injection system that can can grow a wide variety of plants such as vegetables, fine herbs, or even flowers - all in our single, closed and isolated dome. The unit rotates at a consistent speed, which can be variably set to optimize each plant's needs. The unit works on a drip basis, thus saving considerably on water and fertilizer, as those elements are injected at the root level. This makes our units more effective than other similar devices, as proved in government tests in Canada.
Sidebar Discussion: Given favorable economics, most rotary garden farming plants are lettuce varieties (i.e., coral, leaf, curly, wave antler, sweet romaine), herbs (i.e., coriander, mint, basil), and cruciferous vegetables (i.e., broccoli, cabbage, bok choy, sprout). As industry experience develops, we see many more cropping possibilities being added.
In the future, we also believe that we can distinguish products by individual medical needs because of the rotary garden compact technology. For example, by controlling the quality of the nutrient solution, we can control the quality of plant nutrients. As a result we can stimulate development of desirable compounds in fruit and create high-quality produce in these rotary gardens as well.
Currently, some functional and medicinal crops are also grown indoors with more traditional, non-rotating gardening techniques. Many Japanese hospitals have on-site plant factories that produce specific crops for patients. Examples of these types of gardening approaches are where hospitals are experimenting with low-potassium spinach for patients with kidney maladies. Other hospitals are experimenting with ways to lower food nitrate levels.
So as you can see this type of indoor gardening is in early evolutionary stages. We add the dimension of also treating the basic water itself to produce even more favorable crop alternatives.