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  2. Tree stump - Wikipedia

    en.wikipedia.org/wiki/Tree_stump

    These stump removers are mostly made of potassium nitrate (KNO 3) and act by rapidly increasing the decay of the stump. (The chemical provides nitrogen, a limiting nutrient, to tree-decaying fungi. Other nitrogen fertilizers also work.) [5] After an average of 4–6 weeks, the stump will be rotten through and easily fragmented in manageable ...

  3. Potassium nitrate - Wikipedia

    en.wikipedia.org/wiki/Potassium_nitrate

    Potassium nitrate is a chemical compound with a sharp, salty, bitter taste and the chemical formula K N O 3. It is a potassium salt of nitric acid. This salt consists of potassium cations K + and nitrate anions NO − 3, and is therefore an alkali metal nitrate. It occurs in nature as a mineral, niter (or nitre outside the US). [5]

  4. Rocket candy - Wikipedia

    en.wikipedia.org/wiki/Rocket_candy

    Potassium nitrate is most commonly found in tree stump remover. Additives can be many different substances, and either act as catalysts or enhance the aesthetics of the liftoff or flight. A traditional sugar propellant formulation is typically prepared in a 65:35 (13:7) oxidizer to fuel ratio. [1]

  5. Ammonium sulfamate - Wikipedia

    en.wikipedia.org/wiki/Ammonium_sulfamate

    Ammonium sulfamate is considered to be particularly useful in controlling tough woody weeds, tree stumps and brambles.. Ammonium sulfamate has been successfully used in several major UK projects by organisations like the British Trust for Conservation Volunteers, English Heritage, the National Trust, and various railway, canal and waterways authorities.

  6. Sodium metabisulfite - Wikipedia

    en.wikipedia.org/wiki/Sodium_metabisulfite

    Sodium metabisulfite or sodium pyrosulfite (IUPAC spelling; Br. E. sodium metabisulphite or sodium pyrosulphite) is an inorganic compound of chemical formula Na 2 S 2 O 5. The substance is sometimes referred to as disodium metabisulfite. It is used as a disinfectant, antioxidant, and preservative agent. [2] When dissolved in water it forms ...

  7. Outline of forestry - Wikipedia

    en.wikipedia.org/wiki/Outline_of_forestry

    Stump harvesting – removal of tree stumps either for biomass or to free up space in the soil; Drum chopping – knocking down small trees and brush to clear the ground for planting; Planting. Broadcast seeding – scattering of seed either by hand or mechanically over a relatively large area