Sanctions have strangled the supply of potash – a key fertiliser for agricultural crops such as corn, soy, rice and wheat – from Russia and Belarus, which together account for about 40 per cent of global output.
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Hans van Leeuwen covers British and European politics, economics and business from London. He has worked as a reporter, editor and policy adviser in Sydney, Canberra, Hanoi and London. Connect with Hans on Twitter. Email Hans at hans.vanleeuwen@afr.com