Planning reference, not a live quote: ranges on this page are modeled from public benchmarks and regional assumptions. Confirm the dated local offer, freight, application, delivery window, payment terms, and expiration before acting.
South Dakota is a major corn, soybean, and winter wheat state with the James River Valley and eastern South Dakota black soils averaging 155–175 bu/acre corn. Glyphosate (41% AI) has a modeled planning range of $16–$22/gallon in South Dakota markets as a 2026 planning reference, reflecting Great Plains supply chain conditions.
| Benchmark | Price | vs. 2025 |
|---|---|---|
| NOLA barge (national reference) | $14–$20/gallon | +15–25% |
| South Dakota co-op / distributor | $16–$22/gallon | +27–37% |
| South Dakota retail delivered | $16–$23/gallon | +29–39% |
Use this range to prepare questions, not to make a purchase decision. Confirm the dated source evidence and the actual local delivered quote before acting.
South Dakota receives fertilizer via Missouri River barge terminals at Sioux City and by rail; western South Dakota pays premiums of 12–18% over NOLA.
| Driver | Impact |
|---|---|
| Chinese generic production | China dominates global glyphosate API production; U.S. tariff policy determines import costs. |
| Tariff uncertainty | U.S.-China tariff changes in 2025–2026 added 10–25% landed cost variability on imported generics. |
| Generic vs. branded pricing | Generic 41% AI is functionally identical to branded Roundup; 30–40% cost savings available. |
| Resistance management costs | Glyphosate-resistant weeds force higher-cost alternative products on affected acres. |
South Dakota farmers typically source Glyphosate (41% AI) through regional co-operatives, independent retailers, and direct distributor contracts. Compare the complete written terms of each local offer; freight, application, financing, storage, delivery window, and quote expiration can matter as much as the headline price.
The modeled planning range for Glyphosate (41% AI) in South Dakota is approximately $16–$22/gallon. It is not a live local quote. Confirm the supplier, product, freight, application, delivery, payment, and expiration terms.
South Dakota sits in the Great Plains supply zone. South Dakota receives fertilizer via Missouri River barge terminals at Sioux City and by rail. Premiums over NOLA benchmarks typically run 12–20% depending on season and logistics conditions.
Seasonal programs can change freight, financing, storage, application, and delivery terms. Compare the complete written offer and decision window; GrainBrief organizes dated evidence but does not tell a buyer exactly when to act.
GrainBrief puts dated public benchmarks beside the local quote details you enter so you can compare terms with clearer context.
Get Your Free Local Signal BriefGrainBrief public pages show source context and plain-English interpretation. Subscriber views expose source dates, update rhythm, and decision-support limits before a signal is used.
See how GrainBrief labels input pressure, bids, basis, and market context before you start a trial.
No spam. Unsubscribe anytime.