About: http://webisa.webdatacommons.org/413112799

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	Ten years ago, Olness developed a test that does measure soil vanadium???and its ratio to phosphorus and other key nutrients.
http://www.w3.org/ns/prov#wasQuotedFrom	usda.gov