Fertilizer price charts track spot prices at different points in the supply chain. NOLA barge price is the import reference — the first price after the product enters the U.S. Terminal/wholesale price adds handling and inland freight. Retail price (USDA AMS survey) is what farmers actually pay. The spread between NOLA and retail is typically 15–25% and widens during peak demand.
| Source | What it shows | Update frequency |
|---|---|---|
| USDA AMS Fertilizer | Retail and terminal prices by region | Weekly |
| NOLA Barge Prices | Import reference — first U.S. price point | Daily/weekly |
| FRED (St. Louis Fed) | Long-run historical price series | Monthly |
| CME Futures (urea) | Forward price expectations | Real-time |
GrainBrief tracks USDA AMS, FRED, and EIA data every week and sends you a buy, hold, or negotiate signal for each input. No manual spreadsheet. No lag.
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