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2. Tree stump - Wikipedia

   en.wikipedia.org/wiki/Tree_stump

   Tree stump, about 37 years after falling. After a tree has been cut and has fallen, the stump or tree stump is usually a small remaining portion of the trunk with the roots still in the ground. Stumps may show the age-defining rings of a tree. The study of these rings is known as dendrochronology. Stump sculpture by German artist Eberhard Bosslet

3. Pyrotol - Wikipedia

   en.wikipedia.org/wiki/Pyrotol

   Since it was very inexpensive, it was often used by farmers to remove tree stumps and clear ditches. [3] The substance was known for being used to commit the Bath School bombing in 1927. [ 4 ] [ 5 ] Distribution of pyrotol for farm use was discontinued in 1928, due to exhaustion of the supply of surplus explosives.

4. Stump harvesting - Wikipedia

   en.wikipedia.org/wiki/Stump_harvesting

   The stump is the base of the trunk and the attached woody roots. Tree stumps and roots are extracted using a hydraulic head on a tracked excavator or with a mechanical head equipped by a special tool for tractors. Stump harvesting is expected to provide an increasing component of the woody material required by the woody biomass power sector in ...

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. Potassium nitrate - Wikipedia

   en.wikipedia.org/wiki/Potassium_nitrate

   Component (usually about 98%) of some tree stump removal products. It accelerates the natural decomposition of the stump by supplying nitrogen for the fungi attacking the wood of the stump. [58] In heat treatment of metals as a medium temperature molten salt bath, usually in combination with sodium nitrite. A similar bath is used to produce a ...

7. Stump grinder - Wikipedia

   en.wikipedia.org/wiki/Stump_grinder

   A stump grinder is a machine designed to remove tree stumps by using a rotating cutting disc that chips away the wood. The machine typically features a cutter wheel with fixed carbide teeth. The cutter wheel's movements are controlled by hydraulic cylinders , which allow it to move laterally and vertically to grind through the stump.