Assertion: urea's analysis | /r/HasProperty | expressed as -k 2 o.
Facets:
value: usuallly
type: DEGREE
Source sentences:
text: Fertilizer grade or analysis is the weight percent of available nitrogen (N), phosphate (P 2 O 5 ), and potash (K 2 O) in the fertilizer, usuallly expressed as N-P 2 O 5 -K 2 O.