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Aeroponics is the process of growing plants in air or mist environment without the use of soil. Not to be confused with hydroponics or peeponics, aeroponics is the process of spraying or fogging the roots of the plants with a nutrient solution. The plants are usually housed in troughs, tubes or foam, with the leafy part of the plants separate from the roots. Moreover, the roots are usually fully exposed and constantly sprayed with micro bursts of atomized water.
Salient features: Aeroponics is a process of growing plants in an air and mist environment, without the use of soil. The set-up would be housed inside a green house structure, with a state-of-the art refrigeration system. A completely closed greenhouse with 40 per cent sunlight penetration, 60 per cent sunlight diffusion, covered ground with mounted, automated pulse irrigation and automated climate management are salient features. The basic principle of aeroponic growing is to grow plants suspended in a closed or semi-closed environment by spraying the plant’s dangling roots and lower stem with an atomized or sprayed, nutrient-rich water solution.
Need for aeronomics: Driven by the dire need for food and an all around drought-like situation in several places with failing rains and a depleting water table, researchers have been trying various methods of farming to increase crop yield with minimum investment and water requirement. Aeronomics is one of latest methods to achieve increase crop yield.
Why in news? The Defence Institute of High Altitude Research (DIHAR) is developing aeroponic-based modules that include indoor farming which would not only help to enhance agro productivity but also relieve stress among defence personnel. DIHAR is a research wing of DRDO, which aims at evolving novel inputs, with focused R&D in cold arid agro-animal technologies for enhancing agro-animal productivity and availability of fresh foods for troops in Ladakh, the most difficult terrain of the world.
Advantages: • Since plants have access to oxygen 24/7 they generally will experience faster growth than conventional means • Water and nutrient used efficiently • Less need for nutrients and water than traditional hydroponics systems • No need to worry about weeding • Takes up very little space • It uses considerably less energy and water than traditional agriculture.
Disadvantages: • Need to provide nutrients as with hydroponics • Requires electricity for small pumps and timers • As with hydroponics, there is need for some form of competency to run system • It can be an expensive system to buy • In the beginning there is need to monitor the water • Root crops and trees are much more difficult to grow
Conclusion: Aeronomics is the best tool for farming in urban spaces. Using this technique, one can convert building rooftops to vegetable-production bases. This can enable cities to have more green buildings with a sustainable healthy vegetable production. It is often referred as ‘white-collar agriculture’ &. ‘Farming of the future’ as one need not dirty one's hands, remove grass, uproot or plant, only the seedlings are placed.
By: Dr. Vivek Rana ProfileResourcesReport error
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