About: http://webisa.webdatacommons.org/298617442

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	</p><p>Between 1950 and 1987, public tube-wells, regulations governing private installations and public monopolies in the supply of pumps, motors and other equipment were a constraint on the development of irrigation.
http://www.w3.org/ns/prov#wasQuotedFrom	eoearth.org