Assertion: fertilizer's iron | /r/HasProperty | two supplemental nutrients
Facets:
Source sentences:
text: In turf fertilizers, this fourth number usually represents either iron (Fe) or sulfur (S), two supplemental nutrients that may be of value under special conditions.
text: In turf fertilizers, this fourth number usually represents either iron (Fe) or sulfur (S), two supplemental nutrients that may be of value under special conditions.