Hyproponics Most waters are quite suitable for home soilless gardening. Our supplies come from a wide number of sources, including rivers, reservoirs, wells, boreholes, and sometimes distilled sea water. The first test is that if the water is good for drinking by human beings or animals then it will be satisfactory for plants. At one time, it was thought that if the salt content of a water exceeded two thousand five hundred parts per million then it would be too saline for garden flowers and vegetables. Recent research work in North Africa and Israel has shown this to be incorrect. So long as there is good drainage and free movement of salty water through the growing medium plants will tolerate very saline water, even sea water, for indefinite periods. The late Dr Hugo Boyko, President of the World Academy of Art and Science, was responsible for most of these investigations, which have very important implications for the extension of hydroponics in desert regions where the only large water resources that exist are often salty or may have to be drawn from the sea through pipelines. In the light of this work, we can qualify the remark about suitability of water for plant growing by adding that many supplies that would be unpalatable for drinking can do very well for raising flowers and vegetables.




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December 4, 2008