China restricts fertiliser exports, further crimping war-tightened supply

China restricts fertiliser exports, further crimping war-tightened supply China is clamping down on fertiliser exports to protect its domestic market, a number of industry sources said, putting an additional strain on global markets that were already grappling with shortages caused by the US-Israeli war on Iran. China is among the largest fertiliser exporters - shipping more than $13 billion worth of it last year - and it has a history of controlling exports to keep prices low for farmers. Fertilisers are essential for plant growth and crop yields.