Hydroponic Systems










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Why Hydroponic System For Urban Agriculture

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Rooftop hydroponic systems in cities produce vegetables that are cheaper and healthier than rural farms   Putting roots down on rooftops. On a 1,600-square-foot-rooftop in Guangzhou, China, 14 hydroponic tanks produce hundreds of pounds of vegetables a year, with a potential profit of over $6,000 annually—almost twice the  2015 annual minimum wage in the city , which has one of the highest monthly minimum wages in the country. The hydroponic tanks are part of  study  that shows residents and developers in Guangzhou that their rooftop space might be worth some green. A paper published this past July the journal  Agronomy for Sustainable Development  reports that growing leafy greens in rooftop hydroponic systems can not only produce a steady supply of vegetables—it can also be cheaper than buying store-bought alternatives. It’s one of the first studies outlining a comprehensive business model for hydroponic rooftop farming, a method croppi...
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The Future of Agriculture

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Surplus and Scarcity The planet is growing  more food than ever , and yet  millions of people  continue to starve worldwide. People are hungry everywhere  — in the country, in the suburbs. But increasingly, one of the front lines in the war against hunger is in cities. As  urban populations grow , more people find themselves in food deserts, areas with “[l]imited access to supermarkets, supercenters, grocery stores, or other sources of healthy and affordable food,”  according to a report  by the  U.S. Department of Agriculture. New technologies are changing the equation, allowing people to grow food in places where it was previously difficult or impossible, and in quantities akin to traditional farms. Farming at New Heights Urban farms can be as simple as traditional small outdoor community gardens, or as complex as indoor vertical farms in which farmers think about growing space in three-dimensional terms. These complex, futuristi...
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Growing Food without soil and natural light

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How urban farmers are learning to grow food without soil or natural light! Growing food in cities became popular in Europe and North America during and immediately after World War II. Urban farming provided citizens with food, at a time when resources were desperately scarce. In the decades that followed, parcels of land which had been given over to allotments and city farms were gradually taken up for urban development. But recently, there has been  a renewed interest  in urban farming – albeit for very different reasons than before. As part of a  recent research project  investigating how urban farming is evolving across Europe, I found that in countries where growing food was embedded in the national culture, many people have started new food production projects. There was less uptake in countries such as Greece and Slovenia, where there was no tradition of urban farming. Yet a few  community projects  had recently been started in those places to...
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