Assertion: fertilizer's element | /r/HasProperty | mineral
Facets:
value: usually
type: TEMPORAL
Source sentences:
text: These 15 elements are minerals.
text: A fertilizer qualifies as naturally organic if derived from plant or animal materials or naturally occurring rocks and minerals containing one or more mineral elements that are essential for plant growth.
text: The remaining 13 elements, usually referred to as mineral nutrients, are supplied from several sources.