Hydroponics is the method of growing plants WITHOUT SOIL. Instead of soil, water infused with nutrients normally found in soil is used to grow the plants. It is simple to setup, you use less water than traditional soil-based agriculture. You can plant 4 times the amount of crops in the same space as soil farming and grow them all year long.
Drip System are the most widely used hydroponic systems in the world. They provide plenty of aeration because plant roots are never totally submerged, but are never allowed to dry out.
Drip systems also pull oxygen down with the water emitted from the drippers. This oxygen-rich water trickles over the plant roots and nourishes them. Operation is simple, a pump has tubing connected to it which branches off to feed many plants.
Nutrient solution is dripped at the base of each plant where it trickles through grow media and into the roots. Finally draining into the reservoir where it is reused or drained to waste.