Simply put, Hydroponics is the growing of plants without soil. Plants are grown in an inert medium and fed a solution containing a perfected mix of primary, secondary and micro-nutrients. Hydroponics makes it possible to grow plants in locations where it had not previously been possible, for example on rooftops, or in rocky, barren locations. With the use of an appropriate HID lamp, it is even possible to grow successfully indoors.
Almost any kind of plant can be grown hydroponically, and because plants have access to the exact nutrients they need, they respond by growing more rapidly while producing bigger yields. Field tests have shown that hydroponically grown produce is packed with more vitamins and minerals than soil grown, either organic or non-organic. Not only are nutritional values higher, but it’s said that the flavors are also outstanding. Since plants start out in a disease and pest free medium, little or no pesticides
are necessary.
Although hydroponics might be the farming method of the future, it has been utilized for hundreds of years by many different kinds of people. As noted in Hydroponic Food Production (Fifth Edition, Woodbridge Press, 1997, page 23) by Howard M. Resh: “The hanging gardens of Babylon, the floating gardens of the Aztecs of Mexico and those of the Chinese are examples of ‘Hydroponic’ culture. Egyptian hieroglyphic records dating back several hundred years B.C. describe the growing of plants
in water.
Over the last one hundred years, scientists and horticulturists have experimented heavily with hydroponics. The goal has been to grow fresh produce in areas of the world without soil. Hydroponics was used to feed troops in WWII, and it has been integrated into the space program. More recently it has been adopted by farmers and hobbyists who see the value of hydroponic growing, including the ability to produce higher yields, with less pesticides and less water waste.
Plants grown in hydroponic systems maintain optimum nutrient and moisture levels, so they grow faster and healthier. And no soil means no weeds and no soil-born pests or diseases. Another advantage is that root systems stay smaller on hydroponically grown plants, allowing the plant to focus its growth energy on producing plant mass rather than roots. This means you can have more plants per square foot of growing space. And since hydroponic plants never get root bound, they don’t need to be repotted. Hydroponic produce has a longer shelf life than soil grown produce.
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