The government of Sri Lanka and the United Nations World Food Programme were prompt in providing food for the displaced persons, but most of it was in the form of dry rations. Fresh vegetables were lacking because they were logistically difficult to supply. Working in Vavuniya District in the northeast, the International Water Management Institute (IWMI) has provided a solution to this challenge.
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Source: http://www.sciencealert.com.au/news-global-food-cr