The boss of one of the world's biggest fertiliser producers has warned the price of weekly food shops could rise within the next few months due to the war in Iran. Svein Tore Holsether, chief executive of Yara, told the BBC that the price increases faced by food producers will be passed down to shoppers. The closure of the Strait of Hormuz has caused disruption of fertiliser supplies, which are used to grow fruit and vegetables. As a result, fertiliser prices have soared by around 80% since the