About: http://webisa.webdatacommons.org/74465320

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Optionally, trace mineral nutrients and salts thereof, such as zinc sulfate, can be added to the bioactive hydrogel matrix.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com