About: http://webisa.webdatacommons.org/70487043

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	Do the nutrients consist of such things as phosphorus and calcium carbonate or are they more complex stuff like organic material?
http://www.w3.org/ns/prov#wasQuotedFrom	discovermagazine.com