Hydroponics is the way to grow plants where there is no soil available. You will find it on rooftops, walls, indoors, rocky islands, deserts and the International Space Station.
Use less water
In most hydroponics systems, water is recirculated. Every bit of water is reused over and over again so hydroponic systems are more efficient in using water than soil agriculture, where recycling water is impossible. A hydroponic culture can save up to 95% of water over a traditional one.
Plants need nutrients to grow (just as you do), but most hydroponic substrates are inert and chemically inactive. They do not contain those indispensable nutrients. That’s why it is essential to add fertilizers to the water. This mix is called “nutrient solution”.
Plants grow faster
Thanks to studies in plant nutrition, now we know a lot about what they need; every plant has some ideal conditions. Tune the nutrient solution to your culture’s necessities and you are basically creating a paradise for the plants. With all their needs covered they grow fast and strong. A hydroponic culture can grow 2 to 3 times faster than a traditional one.
Plants grow healthier (and you too)
A good quality substrate will not contain bugs or fungi that are often present in soil and can weaken or even kill the plants. Also indoor and greenhouse cultures are more protected from plagues, so less pesticide is necessary and produce is healthier to consume.
Even when pesticides are applied in recirculating irrigation water, they are used more efficiently and will cause a much smaller impact on the environment. We have to protect our planet.