About: http://webisa.webdatacommons.org/101077684

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	The others - nitrogen, phosphorus, potassium, calcium, magnesium, sulfur, boron, copper, chlorine, iron, manganese, molybdenum, zinc, nickel, and cobalt - are derived mostly from the soil.There
http://www.w3.org/ns/prov#wasQuotedFrom	the-compost-gardener.com