Making an hydroponic system at home

Time goes by and natural resources are decreasing while population increases. We all know this problem can lead to hunger by having less area for farming and less natural resources such as water. Water is a precious resource for human life and of course a key in food production.
This is where the fight and concern begins: Are we prioritizing the use of water to fill our daily needs or to create more efficient ways to produce food? Are we using natural land for farming or implementing a system to produce food inside of our cities?
The earth currently has about 7 billion inhabitants, we know based on statistics that this number will rapidly increase to 9 billion people by 2050. What is the problem with population growth? Scientists from all over the world have recognized that natural resources are not enough to provide food in the near future if we keep using the same food production techniques.
New techniques are now being implemented by several growers across the world in order to improve food production and use of resources, one of which is hydroponics. What is hydroponics? Hydroponics is a technique where plants are produced in absence of soil.

Instead of soil we use a material called substrate, which allows us to separate nutrition and provide specific nutrients in water in a traditional or organic way. What is the benefit of hydroponics? By implementing this techniqu we are able to provide very specific nutrition to our plants which can allow us to improve yield and product quality. More important hydroponic systems can drain or recirculate water making it possible to save from 50% to 90% water in comparison to traditional agriculture. Another advantage is the absence of soil.