About: http://webisa.webdatacommons.org/195064021

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	Organic matter in the soil and especially humic acids" are now believed to be contributors to plant nutrition via soil conditioning, metal complexing and other reactions.
http://www.w3.org/ns/prov#wasQuotedFrom	vt.edu