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  2. Purdue Improved Crop Storage bags - Wikipedia

    en.wikipedia.org/wiki/Purdue_Improved_Crop...

    The bag is then tightly sealed, preventing air from entering. [7] The first polyethylene bag is surrounded by a second identical bag, which is also sealed, making it airtight. [7] The double-bagged grain is then sealed inside a third woven polypropylene bag, which provides the mechanical strength for PICS bags. [15]

  3. Earthbag construction - Wikipedia

    en.wikipedia.org/wiki/Earthbag_construction

    Bags on the course above are offset by 200 mm (8 in)—half of the 450 mm (18 in) wall width—similar to running bond in masonry. Bags can either be pre-filled with material and hoisted up, or bags or tubes are filled in place. The weight of the earthen fill locks the bag in place on the barbed wire below.

  4. Topsoil - Wikipedia

    en.wikipedia.org/wiki/Topsoil

    Topsoil is also used for proper surface grading near residential buildings. In order to protect against flooding the International Residential Code requires a 2% slope (2.4 in (61 mm)) for the first ten feet away from the home. [12] Energy Star requires a rate of 0.5 in/ft (42 mm/m).

  5. Vacuum packing - Wikipedia

    en.wikipedia.org/wiki/Vacuum_packing

    Like external sealers, a plastic bag is typically used for packaging. Once the product is placed in the machine, the lid is closed and air is removed. Then, there is a heat seal inside the chamber that will seal the bag, after sealing the bag the chamber is refilled with air by the automatic opening of a vent to the outside.

  6. Soil regeneration - Wikipedia

    en.wikipedia.org/wiki/Soil_regeneration

    Soil degradation means that soil quality has diminished, which causes ecosystem functions to decline. [1] One third of the globe's land has degraded soil; [1] especially the tropics and subtropics with around 500 million hectares. [1] Soil degradation occurs due to physical, chemical, and biological forces. [5] These forces can be natural and ...

  7. Growbag - Wikipedia

    en.wikipedia.org/wiki/Growbag

    Planting is undertaken by first laying the bag flat on the floor or bench of the growing area, then cutting access holes in the uppermost surface, into which the plants are inserted. Growbags were first produced in the 1970s for home use, but their use has since spread into market gardening and farming .

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