Assertion: potassium nitrate | /r/ObjectUse | used as fertilizer
Facets:
value: in amateur rocket propellant
type: LOCATION
Source sentences:
text: Potassium nitrate is also used as a fertilizer, in amateur rocket propellant, and in several fireworks such as smoke bombs, in which a mixture with sugar produces a smoke cloud of 600 times their own volume.
text: Potassium nitrate is used in fertilizers as a source of nitrogen and potassium – two of the macronutrients for plants.