Assertion: nitrate | /r/HasProperty | primary source of nitrogen
Facets:
value: for plants
type: TRANSITIVE-OBJECT
Source sentences:
text: Nitrate (NO 3 ) is the primary source of nitrogen (N) for plants, and occurs naturally in soil and water.
text: Nitrate (NO 3 ) is the primary source of nitrogen (N) for plants; it is a nutrient they cannot live without.