Hydroponics is a part of hydroculture, and is an effective technique used to grow plants using nutrient solution in water, without the need to use soil. some materials like perlite, gravel, pea stone and many other are used as growing medium instead of dirt, which provide good support for the root system and the plant.. The definition of hydroponic growing is: "the method of growing plants without soil, using mineral nutrient solutions in a water solvent." what does this mean, in plain english? hydroponics does not just mean plants growing in a container of water..
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