Assertion: ash | /r/CapableOf | provide enough potassium
Facets:
Source sentences:
text: According to the very thorough information from Oregon State University Extension Service, ash from a cord of oak will provide enough potassium for a garden 60 x 70 feet, whereas a cord of Douglas Fir will be sufficient for a garden 30 x 30 feet, while both will raise the soil pH slightly.