A worker cultivates rice plants at a farm in Bangkok. Rice supply is expected to fall this year due to impacts of the Iran war and an emerging El Nino weather phenomenon that is set to usher in hotter, drier conditions. | REUTERS SINGAPORE/BANGKOK – Rice supply is expected to fall this year as farmers cut planting acreage across Asia because of fertilizer shortages and soaring fuel costs from the Iran war, with an emerging El Nino also set to squeeze output of the world's most consumed staple. Rice is central to global food security, and even modest supply disruptions can ripple through countries, lifting prices and straining household budgets, particularly among price-sensitive consumers in Asia and Africa. The U.N. Food and Agriculture Organization in April forecast rice output would expand by 2% to a record high in 2025/26. The effects of the Iran war are impacting farmers in top exporters Thailand and Vietnam, as well as the import-reliant Philippines and Indonesia, growers and traders said.…