Hydroponics is a form of Horticulture and a subset of hydroculture which is a method of growing plants, usually crops without soil, using mineral nutrient solutions in an aqueous solvent. Terrestrial plants can be grown with only their roots exposed to the nutritious liquid or, in addition, an inert medium such as perlite, gravel, or other substrates can physically support the roots. Despite inert media, roots can cause changes in pH of the rhizosphere and root exudates can influence biology of the rhizosphere. The nutrients used in hydroponic systems can come from many different sources including, but not limited to, fish excrement, duck manure, purchased chemical fertilizers, or artificial nutrient solutions. Plants which are commonly grown hydroponically include tomatoes, peppers, cucumbers, lettuces on inert media. Hydroponics provides many benefits, one of which is a reduction in water use for agriculture. Since growing produce needs far less water, providers in harsh environments with little accessible water could in the future be able to grow their own food.
Video Rating: / 5