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2. Diatomaceous earth - Wikipedia

   en.wikipedia.org/wiki/Diatomaceous_earth

   Diatomite rock sample from Sisquoc Formation Scanning electron micrograph of diatomaceous earth. Diatomaceous earth (/ ˌ d aɪ. ə t ə ˈ m eɪ ʃ ə s / DY-ə-tə-MAY-shəs), also known as diatomite (/ d aɪ ˈ æ t ə m aɪ t / dy-AT-ə-myte), celite, or kieselguhr, is a naturally occurring, soft, siliceous sedimentary rock that can be crumbled into a fine white to off-white powder.

3. Growstones - Wikipedia

   en.wikipedia.org/wiki/Growstones

   Growstones are a substrate for growing plants that can be used for soilless purposes or as a soil conditioner.This substrate is made from recycled glass. It has both more air and water retention space than perlite and peat.

4. Physical pest control - Wikipedia

   en.wikipedia.org/wiki/Physical_pest_control

   When this layer is damaged, the insects become vulnerable to drying out. Unfortunately, the effectiveness of Diatomaceous earth decreases if it is wet. Therefore, it must be used often. [2] This method was used back in the 1930s and 1940s when farmers would run dust over their fields. This would have the very same effect as diatomaceous earth. [3]

5. Surprise Your Neighbors With These Gifts to Make Them Feel at ...

   www.aol.com/best-gifts-surprise-neighbors...

   Made from Diatomaceous earth, it will dry any condensation beneath your favorite beverage instantly, using the same technology that's in the viral bath stone. Shop Now Absorbent Diatomite Coaster

6. Frustule - Wikipedia

   en.wikipedia.org/wiki/Frustule

   When diatoms die and their organic material decomposes, the frustules sink to the bottom of the aquatic environment. This remnant material is diatomite or "diatomaceous earth", and is used commercially as filters, mineral fillers, mechanical insecticide, in insulation material, anti-caking agents, as a fine abrasive, and other uses. [9]

7. Ebb and flow hydroponics - Wikipedia

   en.wikipedia.org/wiki/Ebb_and_Flow_hydroponics

   Detail of an ebb-and-flow system, nutrient-rich water is pumped through the hoses connecting the containers. 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 ...

8. 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.

9. Diatomaceous earth filtration - Wikipedia

   en.wikipedia.org/wiki/Diatomaceous_earth_filtration

   Diatomaceous earth filtration is a special filtration process that removes particles from liquids as it passes through a layer of fossilized remains of microscopic water organism called diatoms. These diatoms are mined from diatomite deposits which are located along the Earth's surface as they have accumulated in sediment of open and moving ...