Disruption to fertiliser supply could lock in a food price hike across South and Southeast Asia, says a researcher. SYDNEY: The Iran war threatens more than global energy supplies – it also looms as a potential food shock. Emerging South and Southeast Asian economies are particularly exposed. Much of the oil that would ordinarily transit the Strait of Hormuz is headed to Asia. But about a third of the world’s fertilisers also pass through this regional chokepoint. Exports of sulphur, a key