The speaker highlights potash as a primary fertilizer produced in Saskatchewan, Canada, with over 98% exported, about 50% to the U.S. market. It is framed as a critical input for crop yields. Unlike nitrogen/phosphates from the Persian Gulf, Canadian potash supply is not directly disrupted by the Strait of Hormuz conflict. It is presented as a stable, tariff-free source amid global fertilizer instability. WATCH as a potential relative beneficiary and more secure supply source within the fractured global fertilizer market, though not a perfect substitute for nitrogen. Substitution limits; potash cannot fully replace nitrogen-based fertilizers for many crops, capping its upside from the specific nitrogen crisis.