Assertion: potash | /r/HasProperty | derived
Facets:
value: from a natural source
type: OTHER
Source sentences:
text: Most potash for fertiliser is derived from one of these potash rocks, sylvinite, requiring only separation from the salt and other minerals and physical grading into a form suitable for fertiliser manufacture or farm spreading.
text: rial means a commercial fertilizer that either 1) contains important quantities of no more than one of the pri-mary plant nutrients—nitrogen, phosphoric acid, and potash ; or 2) has approximately 85% of either nitro-gen, phosphoric acid, or potash in the form of a single compound; or 3) is derived from a natural source and Each fertilizer has an analysis that tells you the percent nitrogen (N) – phosphorus (P 2 O 5) – and potassium (K 2 O) by weight.