About: http://webisa.webdatacommons.org/452314028

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	Those call for zinc if the soil pH is equal to or above 6.0, the soil is a silt or sandy-loam structure, and the soil test zinc is less than or equal to 7 pounds per acre.
http://www.w3.org/ns/prov#wasQuotedFrom	factbites.com