Assertion: radish's potassium | /r/HasProperty | useful
Facets:
value: for producing large roots
type: PURPOSE
Source sentences:
text: Since potassium is so useful for producing large roots it should be applied generously to the quick developing radishes, usually in the form of a 5-10-10 fertilizer -- 5 percent nitrogen, 10 percent phosphorus and 10 percent potassium.