Greenhouse food farming
Large scale greenhouse or indoor vertical farming, conventional and hydroponic, has many advantages such as controlled -environment, up to 90 percent less water, six or more harvests per year, don’t have to use many pesticides, can grow a large volume of food in a relatively small space. Urban greenhouses that are close proximity to the consumer stores eliminate long distance transportation. Moreover, augmented CDL with tailor made LED supplemental grow lights are expected to accelerate maturation process, boost production, increase taste and shelf life.
In a greenhouse lighting, cooling, and ventilation accounts for 30 to 50 percent of the cost to grow. LED augmented CDL grow lights will significantly reduce lighting cost. Day light harvesting and solar powered lighting will cut grid power consumption . Intelligent control system could further reduce cost by precise control of water, nutrients, and temperature.
Future Takes Root In Abandoned Buildings, Warehouses, Empty Lots & High Rises by Jeff Wells, August 09, 2014, International Business Times.
…indoor farming could even be the future of agriculture altogether, with climate change negatively affecting rural farmland while the global population continues to swell. By 2050, the World Health Organization estimates, there will be 9 billion people on Earth, with 70 percent of them residing in urban areas.
Making light work of city dining by M.H.BOSTON, April 29th 2014, The Economist
…average American meal travels around 1500 miles from farm to table. In the US, processing, packaging, transporting, storing and preparing fruit and vegetables requires about four times as much energy as growing them in the first place. And around the world, up to a third of fresh food spoils in transit.
Why some marijuana growers are getting into salad greens by Amy Westervelt, The California Sunday Magazine
…technology for growing cannabis plants indoor can help gardeners trying to grow healthier vegetables at home.