hydroponics - definitie. Wat is hydroponics
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Wat (wie) is hydroponics - definitie

AGRICULTURAL TECHNICS FOR GROWING PLANTS WITHOUT SOIL USING NUTRIENTS IN WATER
Hydroponic; Hydroculture; Soilless gardening; Hydroponic systems; Hydroponics Systems; Hydroponic farming; Tank farming; Hydroponic agriculture; Hydroponic greenhouse; Rotary Hydroponics; Hydroponic farm; Hydroponical; Farming without soil; Soil-less agriculture
  • A ''run-to-waste'' hydroponics system, referred to as "The [[Bengal]] System" after the region in eastern India where it was invented (circa 1946)
  • The deep water raft tank at the Crop Diversification Centre (CDC) South [[Aquaponics]] greenhouse in [[Brooks, Alberta]]
  • A rotary hydroponic cultivation demonstration at the Belgian Pavilion Expo in 2015
  • Polystyrene foam peanuts
  • The ''deep water culture'' technique being used to grow [[Hungarian wax pepper]]s
  • Inside an ebb-and-flow hydroponic system employing individual buckets connected by fill/drain hoses.
  • alt=
  • [[Expanded clay aggregate]]
  • The ''nutrient film technique'' (NFT) being used to grow various salad greens
  • "Mother" cannabis plants growing in coir with added perlite.
  • Excelsior, or wood wool
  • Pumice stone
  • Rice husks
  • Rock wool
  • Perlite
  • aeroponic technique]]
  • An ''ebb and flow'', or ''flood and drain'', hydroponics system
  • Vermiculite
  • [[Water plant]]-cultivated [[crocus]]
  • Young cannabis plants in an ebb-and-flow grow room, Alaska.

hydroponics         
[?h??dr?(?)'p?n?ks]
¦ plural noun [treated as sing.] the process of growing plants in sand, gravel, or liquid, with added nutrients but without soil.
Derivatives
hydroponic adjective
hydroponically adverb
Origin
1930s: from hydro- + Gk ponos 'labour' + -ics.
Hydroponics         
Hydroponics is a type of horticulture and a subset of hydroculture which involves growing plants, usually crops, without soil, by using water-based mineral nutrient solutions in aqueous solvents. Terrestrial or aquatic plants may grow with their roots exposed to the nutritious liquid or in addition, the roots may be mechanically supported by an inert medium such as perlite, gravel, or other substrates.
Passive hydroponics         
  • ''Silver Queen'' cutting in growing medium
Hydroponics for orchid cultivation; Semi-hydroponic for growing orchids
Passive hydroponics, semi-hydroponics or passive subirrigation is a method of growing plants without soil, peat moss, or bark.

Wikipedia

Hydroponics

Hydroponics is a type of horticulture and a subset of hydroculture which involves growing plants, usually crops or medicinal plants, without soil, by using water-based mineral nutrient solutions. Terrestrial or aquatic plants may grow with their roots exposed to the nutritious liquid or in addition, the roots may be mechanically supported by an inert medium such as perlite, gravel, or other substrates.

Despite inert media, roots can cause changes of the rhizosphere pH and root exudates can affect rhizosphere biology and physiological balance of the nutrient solution by secondary metabolites. Transgenic plants grown hydroponically allow the release of pharmaceutical proteins as part of the root exudate into the hydroponic medium.

The nutrients used in hydroponic systems can come from many different organic or inorganic sources, including fish excrement, duck manure, purchased chemical fertilizers, or artificial nutrient solutions.

Plants are commonly grown hydroponically in a greenhouse or contained environment on inert media, adapted to the controlled-environment agriculture (CEA) process. Plants commonly grown hydroponically include tomatoes, peppers, cucumbers, strawberries, lettuces, and cannabis, usually for commercial use, and Arabidopsis thaliana, which serves as a model organism in plant science and genetics.

Hydroponics offers many advantages, notably a decrease in water usage in agriculture. To grow 1 kilogram (2.2 lb) of tomatoes using intensive farming methods requires 214 liters (47 imp gal; 57 U.S. gal) of water; using hydroponics, 70 liters (15 imp gal; 18 U.S. gal); and only 20 liters (4.4 imp gal; 5.3 U.S. gal) using aeroponics.

Hydroponic cultures lead to highest biomass and protein production compared to other growth substrates, of plants cultivated in the same environmental conditions and supplied with equal amounts of nutrients.

Since hydroponics takes much less water and nutrients to grow produce and climate change threatens agricultural yields, it could be possible in the future for people in harsh environments with little accessible water to grow their own plant-based food.

Hydroponics is not only used on Earth, but has also proven itself in plant production experiments in space.

Voorbeelden uit tekstcorpus voor hydroponics
1. The concept of hydroponics is used extensively by commercial growers and intensive vegetable production in glasshouses.
2. Hydroponics bears the dubious distinction of being a growing method for marijuana.
3. Long a niche technology existing in the shadow of conventional growing methods, hydroponics is getting a second look from university researchers and public health advocates.
4. Instead of growing the plants in soil, Prof Ma is experimenting with hydroponics, where the plants are grown in a nutrient–rich liquid.
5. But now major companies from the steelmaker JFE to electronics giant Sanyo have set up agriculture divisions to provide hydroponics systems.