Hydroponics is an ancient technique that dates back approximately 2,600 years. The Hanging Gardens of Babylon built by King Nebuchadnezzar, one of the Seven Wonders of the World, are considered to be the first application of hydroponics in recorded history.

Some of the gardens in Egypt and China, as well as the floating gardens of the Aztecs known as chinampas 1, are other examples of hydroponic agriculture. he chinampas were the most efficient system of water culture known at the time

Chapter I General background
Chapter II Production systems
Chapter II Substrates
Chapter IV Water and nutrition
Chapter V Germination, preparation, planting and management
Chapter VI Pest control and management
Chapter VI Costs Profits

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