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The rising world population is posing threats to global food security. The problem is more serious in urban areas where there is scarcity of farming land and water. Further, global warming is making it more and more difficult to plant crops in an uncontrolled environment. In traditional soil based farming method, farmers require good quality of soil with natural minerals. Soil based farming consumes more resources such as water, fertilizers and space. It also requires higher working cost for tilling and removal of weeds.
Hydroponic farming is a soilless urban market gardening technique that aims at providing fresh farm products, at low costs mainly in urban areas. It has the potential of alleviating food security challenges. However, this practice requires constant monitoring of the farm environment.
Falling prices of advanced microcontroller boards and sensors is making it possible to control and monitor a farm without or with less human intervention.
And wireless sensing makes this even more convenient and less messier.