Assertion: s fertilizer | /r/HasProperty | magnesium sulfate
Facets:
Source sentences:
text: On soils where sulfur deficiency may be expected, 20 lbs S/acre may be applied using S fertilizers (magnesium sulfate, 14%S; potassium sulfate, 18%S; potassium magnesium sulfate, 23%S; calcium sulfate, 24%S, or gypsum, 19%S) that supply S as sulfate.