About: http://webisa.webdatacommons.org/91461390

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	Agricultural soil management activities, such as fertilizer application and other cropping practices, were the largest source of U.S. N 2 O emissions in 2004, accounting for 68 percent.
http://www.w3.org/ns/prov#wasQuotedFrom	state.gov