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  2. Tree shelter - Wikipedia

    en.wikipedia.org/wiki/Tree_shelter

    Young trees sheltered by plastic tubes. A tree shelter, tree guard or tree tube (sometimes also Tuley tube) is a structure used in tree planting, arboriculture and tree care that protects planted tree saplings from browsing animals and other dangers as the trees grow.

  3. Drip irrigation - Wikipedia

    en.wikipedia.org/wiki/Drip_irrigation

    Usage of a plastic emitter in drip irrigation was developed in Israel by Simcha Blass and his son Yeshayahu. [6] Instead of releasing water through tiny holes easily blocked by tiny particles, water was released through larger and longer passageways by using friction to slow water inside a plastic emitter.

  4. Hydroponics - Wikipedia

    en.wikipedia.org/wiki/Hydroponics

    Whenever the solution is depleted below a certain level, either water or fresh nutrient solution is added. A Mariotte's bottle, or a float valve, can be used to automatically maintain the solution level. In raft solution culture, plants are placed in a sheet of buoyant plastic that is floated on the surface of the nutrient solution.

  5. Nutrient film technique - Wikipedia

    en.wikipedia.org/wiki/Nutrient_film_technique

    Plants placed into nutrient-rich water channels in an NFT system A home-built NFT hydroponic system. Nutrient film technique (NFT) is a hydroponic technique where in a very shallow stream of water containing all the dissolved nutrients required for plant growth is re-circulated past the bare roots of plants in a watertight gully, also known as channels.

  6. Plasticulture - Wikipedia

    en.wikipedia.org/wiki/Plasticulture

    Plant height in okra was significantly increased with black plastic mulch use compared to those grown in bare soil. Evaporation from soil accounts for 25-50% of water used in irrigation , using plastic mulch prevents much of this evaporation and thus reduces the amount of water needed to grow the crop. [ 8 ]

  7. Deep water culture - Wikipedia

    en.wikipedia.org/wiki/Deep_water_culture

    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 one foot deep filled with a nutrient-rich solution with ...

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  9. Float chamber - Wikipedia

    en.wikipedia.org/wiki/Float_chamber

    The valve is often described as a needle valve, although this is a misnomer. A true needle valve uses a tapered needle in a tapered seat, so as to provide fine control over flow rate. The float valve uses a pointed needle against a square-edged seat, to give a positive shut-off. As the float relies on gravity, the chamber must be mounted ...