About: http://webisa.webdatacommons.org/367062778

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	Based on the pH, soluble salts level, and the concentrations of macro- and macro-elements in the medium and leaves, P 45 pellet is the best source, if nitrogen is supplied constantly to the optimum levels.
http://www.w3.org/ns/prov#wasQuotedFrom	usda.gov