Assertion: phosphorus | /r/HasProperty | available
Facets:
value: to plants
type: TRANSITIVE-OBJECT
value: through weathering
type: CAUSE
Source sentences:
text: Phosphorus contained within the crystalline structure of complex mineral forms is available through weathering, but on geologic time scales.
text: For phosphorus to be available to plants, it must be in solution, not chemically bound to other soil/fertilizer constituents.