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2. Kratky method - Wikipedia

   en.wikipedia.org/wiki/Kratky_method

   Kratky method. The Kratky method is a passive hydroponic technique for growing plants suspended above a reservoir of nutrient-rich water. [1] Because it is a non-circulating technique, no additional inputs of water or nutrients are needed after the original application, and no electricity, pumps, or water and oxygen circulation systems are ...

3. Deep water culture - Wikipedia

   en.wikipedia.org/wiki/Deep_water_culture

   An example of deep water culture in lettuce production. Deep water culture (DWC) is a hydroponic method of plant production by means of suspending the plant roots in a solution of nutrient-rich, oxygenated water. Also known as deep flow technique (DFT), floating raft technology (FRT), or raceway, this method uses a rectangular tank less than ...

4. Ebb and flow hydroponics - Wikipedia

   en.wikipedia.org/wiki/Ebb_and_Flow_hydroponics

   Ebb and flow hydroponics. Ebb and flow hydroponics is a form of hydroponics that is known for its simplicity, reliability of operation and low initial investment cost. Pots are filled with an inert medium which does not function like soil or contribute nutrition to the plants but which anchors the roots and functions as a temporary reserve of ...

5. Hydroponics - Wikipedia

   en.wikipedia.org/wiki/Hydroponics

   The main advantage of the NFT system over other forms of hydroponics is that the plant roots are exposed to adequate supplies of water, oxygen, and nutrients. In all other forms of production, there is a conflict between the supply of these requirements, since excessive or deficient amounts of one results in an imbalance of one or both of the ...

6. Passive hydroponics - Wikipedia

   en.wikipedia.org/wiki/Passive_hydroponics

   Semi-Hydroponics (Semi-Hydro or S/H) was the first passive hydroponic technique utilized for orchids, originating in the early 1990s, using Lightweight Expanded Clay Aggregate (LECA) as a medium in sold-bottomed containers, into which one or two, small-diameter holes were placed in the sidewall, setting the depth of the internal reservoir.

7. Vertical farming - Wikipedia

   en.wikipedia.org/wiki/Vertical_farming

   Vertical farming is the practice of growing crops in vertically stacked layers. [1] It often incorporates controlled-environment agriculture, which aims to optimize plant growth, and soilless farming techniques such as hydroponics, aquaponics, and aeroponics. [1] Some common choices of structures to house vertical farming systems include ...