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Aquaculture and hydroponics are combined to form efficient, closed, water-saving systems that provide restaurants and supermarkets in urban locations with tomatoes, cucumbers, lettuce, and fish. The underlying principle uses feces from the fish as fertilizer for the plants, which are grown without soil. Excess waste products are decomposed by bacteria and recirculated to the fish tank.
Urban farming
To enjoy their own fresh salad ingredients while also lowering harmful emissions, consumers are planting gardens on their rooftops or on small plots in the neighborhood. Or even in their homes. Smart mini-greenhouses are becoming as much a part of kitchens as ovens or dishwashers. Digitally connected to those in other homes, they can benefit from crowd experience and opti- mize their algorithms.
  Vertical greenhouses
Crops are no longer planted solely on ground-level fields. Farmers grow vegetables and herbs in multi-level vertical greenhous-
es with nutrient solutions and specially developed light sources, where they can ripen until the most favorable point in time. Smaller such units are located in supermarkets next to produce sections, supplying customers with vegetables that are literally freshly harvested.
 Smart stalls
Farm animals like cows will be wearing fitness trackers in the future, to measure whether they are healthy and sufficiently active. Sensors register data from their breath to determine whether feed compositions correctly meet their nutritional and physiological needs. Microphones and thermographic cameras supply additional data. Farmers are alerted if signs of a bacterial infection are detect- ed—which enables lower levels
of pharmaceutical products to be administered.
Porsche Consulting The Magazine

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