<http://webisa.webdatacommons.org/prov/176396044>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/170738345> .
<http://webisa.webdatacommons.org/prov/194513812>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/170738345> .
<http://webisa.webdatacommons.org/170738345>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/170738345>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<usda.gov> .
<http://webisa.webdatacommons.org/170738345>	<http://www.w3.org/ns/prov#value>	"The cropping systems research team has developed fertility practices for potatoes, determined that Columbia Basin soils are zinc deficient, and devised procedures to apply zinc to correct this deficiency in such crops as beans and grapes." .