| http://www.w3.org/ns/prov#value | - Examples of the inorganic substances are nitrogen sources such as ammonium sulfate, ammonium chloride and the like; potassium and phosphorus sources such as dipotassium hydrogen phosphate; salts of iron, copper, magnesium, manganese, cobalt, zinc, calcium and the like; and ashes of natural products such as molasses.
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