PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The centres visited covered wheat research, swine and poultry, grapes and other fruit, soils, and agrobiology; one being where much of the work on nitrogen fixation by rhizosphere bacteria was pioneered by Johanna Dobereiner and colleagues in the 50s and 60s.
http://www.w3.org/ns/prov#wasQuotedFrom
  • foodsecurity.ac.uk