About: http://webisa.webdatacommons.org/163001516

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	Often it is difficult to explain this variability because yield is affected by many factors including soil conditions, weather and management practices.
http://www.w3.org/ns/prov#wasQuotedFrom	usda.gov