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2. Expanded clay aggregate - Wikipedia

   en.wikipedia.org/wiki/Expanded_clay_aggregate

   In the horticultural practice of hydroponics, LECA is a favored medium for growing plants within; the round shape provides excellent aeration at the root level, while the LECA clay pieces themselves become saturated with water and plant food, thus giving the roots a consistent supply of both. So-called semi-hydroponics or passive hydroponics ...

3. Hydroponics - Wikipedia

   en.wikipedia.org/wiki/Hydroponics

   Baked clay pellets are suitable for hydroponic systems in which all nutrients are carefully controlled in water solution. The clay pellets are inert, pH-neutral, and do not contain any nutrient value. The clay is formed into round pellets and fired in rotary kilns at 1,200 °C (2,190 °F). This causes the clay to expand, like popcorn, and ...

4. Kratky method - Wikipedia

   en.wikipedia.org/wiki/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 required. [2]

5. 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 solid-bottomed containers, into which one or two, small-diameter holes were placed in the sidewall, setting the depth of the internal reservoir.

6. Ebb and flow hydroponics - Wikipedia

   en.wikipedia.org/wiki/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 water and solvent mineral ...

7. Hydrofarm - Wikipedia

   en.wikipedia.org/wiki/Hydrofarm

   Hydrofarm Inc. (HYFM) is an American company specializing in the distribution and manufacture of controlled environment agriculture equipment and supplies. [1] [2] Founded in 1977, Hydrofarm went public on December 14, 2020. The company operates a total of nine distribution centers: six located within the United States, two in Canada, and one ...