About: http://webisa.webdatacommons.org/22435119

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	While nursery growers often use lime and other materials to alter substrate pH, the impact of pH on nutrient availability in bark substrates is poorly understood.
http://www.w3.org/ns/prov#wasQuotedFrom	usda.gov