About: http://webisa.webdatacommons.org/33304833

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	First, boron is an element that is essential for crops but has a small concentration window between that what is considered deficient and that which is potentially toxic.
http://www.w3.org/ns/prov#wasQuotedFrom	usda.gov