About: http://webisa.webdatacommons.org/393374812

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	Fertilizer, usually animal manure, was added to the soil to provide nutrients, particularly nitrates and phosphates, for the plants.
http://www.w3.org/ns/prov#wasQuotedFrom	mheducation.com