Gardening

The term hydroponics was created  in the USA in the 1930′s to describe the growing of plants in water. It came from the Greek words for ‘water’ – hydro and ‘to work’ – ponos.
 
Hydroponics actually means ‘working with water’. The definition has broadened to describe all forms of gardening without soil.

Hydroponic gardens in history date back to Babylon. The Aztec Indians had a system of growing crops on rafts in shallow lakes, you can still see some of these floating gardens near Mexico City.

Developments did not start taking place in Europe until 1699 when Woodward found that he could grow plants in a solution of water to which soil had been added.

German scientists also started using liquid solutions, to study the nutritional requirements of plants in the 1850′s and was followed by Sachs in 1860 and Knop in 1861 who made studies of nutrient elements in water solutions.

They were able to grow plants in nutrient solutions made up from mineral salts eliminating the need for soil. This is whear the need for testing and adjusting the PH level of the liquid came in, so as to get the best growth out of the plants.

The industry has now evolved to a stage whear many millions of dollars of plants and the especially the growth of organic crops has formed stable and ongoing sources of foods for many millions of people who otherwise would not have had them.

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