Java olive trees offer Ninh Thuận farmers high incomes, increase fores… stockbot 0 346 2020.09.10 21:52 http://vietnamnews.vn/society/772172/java-olive-trees-offer-ninh-thuan… + 80 https://vietnamnews.vn/rss/society.rss + 23 The cultivation of Java olive trees in vacant lands, bare hills and mountains in the south - central province of Ninh Thuận is fetching farmers high incomes from harvesting their sap and has increased the forest cover.