
UN Secretary General Ban Ki-moon has urged nations to seize an "historic opportunity to revitalise agriculture" as a way of tackling the food crisis.
Mr Ban told a UN-sponsored summit in Rome that food production would have to rise by 50% by 2030 to meet demand.
Mr Ban said export restrictions and import tariffs ought to be minimised to alleviate the crisis.
The summit comes as food costs have reached a 30-year high in real terms, causing riots in several countries.
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