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Vertical Farming

Preconditions

World population in 2050 to 9 billion, about 80% of whom were urban dwellers. Mankind may be facing a dilemma: on the one hand, consolidation of cities selected by more and more land suitable for agriculture, and, on the other hand, in order to feed so many people need grounds with Brazil. One possible way to solve the food problem of the future may be vertical farm, located directly in the city.

Stucture of vertical farm

Every year the area of arable land is decreasing. So, if in 1950 each person had about 0.52 hectares, by 2050 this figure will be less than 0.19 ha. Solve future problems, scientists are trying different ways: some propose to grow the plants in the deserts, and others - to move a farm in the city, giving impetus to the development of urban "rural " economy.

Hydroponic and aeroponic methods for growing plants

In the development of vertical farms as a basis for going to take a well-established hydroponic and aeroponic methods of growing plants. Hydroponics (from the Greek. «hydro» - water and «ponos» - work that is "working solution") - a technology of growing plants without soil, in a nutrient aqueous solution containing the optimal concentration of easily digestible form and all necessary materials for concrete taken of the plant.

Aeroponic (air-culture) - a technology of growing plants without soil and substrates, in which the roots are in the air, and the necessary substances to flow through drip spraying nutrient solution. Nutrient mixture fed continuously or at frequent intervals, so that the roots have not had time to dry.

Both technologies are superior to traditional approaches to environmental impact and volume of crops, obtained from 1 ha, as well as significantly reduce water consumption. Thus, for the aeroponic method of growing plants require only 1 / 10 of the water expended in the classical agricultural methods.

Structure of vertical farm

Advantages of vertical farming

  1. Year-round crop production.
  2. Eliminates agricultural runoff.
  3. Significantly reduces use of fossil fuels (farm machines and transport of crops).
  4. Makes use of abandoned or unused properties.
  5. No weather-related crop failures.
  6. Offers the possibility of sustainability for urban centers.
  7. Converts black and gray water to drinking water by collecting the water of transevaporation.
  8. Adds energy back to the grid via methane generation using inedible parts of crop plants.
  9. Creates new urban employment opportunities.
  10. Reduces the risk of infection from agents transmitted at the agricultural interface.
  11. Returns farmland to nature, helping to restore ecosystem functions and services.

References

Link to a page dedicated to Vrtical Farming

(http://www.eoearth.org/article/Vertical_farming)