Floating gardens of china and hanging gardens of Babylon are two examples of this. Scientists started this method since 1950 and countries like Germany, Australia and Holland are using this from many years. In 19th century the researchers of plant technology came to know that actually it is possible to garden without soil because the essential mineral need for a plant to grow can be found in water.

An active hydroponic system moves the nutrient solution using a pump. While the passive system works on the capillary system. Passive systems are too weak to supply enough oxygen to the root system for maximum growth. Another method of characterizing hydroponics is recovery or non-recovery. Recovery systems or re- circulating systems reuse the nutrient solution and non recovery systems don't use them. Pumps and moving parts are not used in this technique.

While the nutrient film technique is this system. In this root system is aerated and supported. The principle that applies to soil fertilizers also applies to fertilizers. It contains all the nutrients that the soil fertilizers contain. Plants with PH range 5.8 to 6.8 can be grown hydroponically. The PH of the growing plants can be checked much easily than that of the soil.

If you want to build Hydroponic System on your own then fist of all build the system on your own. When you understand the basics of the system and when you gain some experience regarding this then start growing your own system. This will help you a lot. You will be able to use the parts of this system when you will build your own gardening system. Building own system can be rewarding but sometimes it can be very frustrating. You must be patient while doing so.