Potash Prices
Potash (MOP) Price in Missouri — Spring 2026
GrainBrief — Updated May 2026 — USDA AMS, FRED, EIA data
Potash (MOP) is priced at $298–$362/ton in Missouri in spring 2026. Missouri potash prices are competitive with the best in the Corn Belt due to Mississippi River terminal access at St. Louis.
Missouri Price vs. National Benchmark
| Market | Price Range | vs. 2025 |
|---|
| Missouri retail average | $298–$362/ton | +6% |
| Corn Belt average | $310–$380/ton | +25–30% |
| NOLA barge reference | $290–$350/ton | +20–25% |
What Drives Missouri Potash (MOP) Pricing
Missouri potash prices are competitive with the best in the Corn Belt due to Mississippi River terminal access at St. Louis.
- Compare quotes to USDA AMS benchmark — USDA publishes weekly retail fertilizer prices by region. If your quote is more than 8% above benchmark, push back.
- Watch NOLA barge prices — terminal prices follow NOLA barge within 2–3 weeks. A barge price drop signals incoming retail relief.
- Pre-buy fall applications before August — China export restriction decisions in August will move the market; pre-buying locks in current prices.
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