If it seems like "hydroponics" is everywhere, that's because it is. Hydroponic farming is one efficient way to grow fruits and vegetables in small spaces without the use of soil. Instead of dirt, plants grow down into water to which farmers have added the necessary nutrients for plant growth. These are then absorbed, along with water, through a plant's roots. Light is provided either by the sun or specially designed grow lights, with many sustainable systems powered from renewable energy sources....
from Inhabitat - Green Design, Innovation, Architecture, Green Building https://inhabitat.com/6-places-where-soil-less-farming-is-changing-how-we-grow-food
via Inhabitat
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