<http://webisa.webdatacommons.org/prov/453518085>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/311200286> .
<http://webisa.webdatacommons.org/311200286>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<usda.gov> .
<http://webisa.webdatacommons.org/311200286>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/311200286>	<http://www.w3.org/ns/prov#value>	"This system is an integration of several distinct weed control practices, proven on a commercial scale of production, and can be readily implemented by growers." .