# USTR addresses fertilizer tariffs, GMO corn ban during Iowa visit - Brownfield Ag News

> USTR Katherine Tai addressed high fertilizer prices tied partly to tariffs on Moroccan phosphate imports at an Iowa roundtable. She also discussed Mexico's proposed GMO corn ban, which Agriculture Secretary Vilsack says could raise Mexican food prices.

- Date: 2022-08-18 · published 2022-08-18T12:00:00.000Z
- Category: policy · region US · magnitude low
- Page: https://feedsoft.ai/events/40009-ustr-addresses-fertilizer-tariffs-gmo-corn-ban-during-iowa-visit-brownfield-ag
- Commodities: [DAP](https://feedsoft.ai/c/DAP.md), [Corn](https://feedsoft.ai/c/CORN.md)

## Why it matters

Possible review of phosphate tariffs could ease fertilizer costs for US growers, while the unresolved Mexico GMO ban poses risk to US corn exports.

## Read by commodity

- DAP: bearish ▼
- CORN: bearish ▼

## Similar past events

| Commodity | Date | Event | 5-day % | 20-day % |
| --- | --- | --- | --- | --- |
| DAP | 2022-09-10 | [US Congressman Randy Feenstra Calls for Cutting Morocco Fertilizer Tariffs](https://feedsoft.ai/events/39917-us-congressman-randy-feenstra-calls-for-cutting-morocco-fertilizer-tariffs.md) | -0.3% | -5.6% |
| DAP | 2022-05-05 | [Removing Fertilizer Tariffs is Not a (Phosphate) Rock and a Hard Place](https://feedsoft.ai/events/41720-removing-fertilizer-tariffs-is-not-a-phosphate-rock-and-a-hard-place.md) | 0.0% | -12.2% |
| DAP | 2026-02-01 | [US to review tariffs on Moroccan, Russian phosphate fertilizer imports](https://feedsoft.ai/events/21375-us-to-review-tariffs-on-moroccan-russian-phosphate-fertilizer-imports.md) | +1.2% | +3.7% |
| DAP | 2026-02-27 | [Five-year review on Moroccan and Russian fertilizer tariffs gets underway \| Agri-Pulse Communications, Inc.](https://feedsoft.ai/events/20914-five-year-review-on-moroccan-and-russian-fertilizer-tariffs-gets-underway-agri.md) | +4.9% | +4.5% |
| DAP | 2019-12-16 | [Diammonium phosphate to come down in Bangladesh — Fertilizer Daily](https://feedsoft.ai/events/5348-diammonium-phosphate-to-come-down-in-bangladesh-fertilizer-daily.md) | +2.7% | +3.5% |
| CORN | 2022-03-22 | [Iowa Ag Secretary focused on GM corn ban during recent trade mission to Mexico - Brownfield Ag News](https://feedsoft.ai/events/42276-iowa-ag-secretary-focused-on-gm-corn-ban-during-recent-trade-mission-to-mexico.md) | +2.8% | +8.6% |
| CORN | 2021-01-20 | [Mexican GMO corn phase-out a concern for US farmers - Brownfield Ag News](https://feedsoft.ai/events/49125-mexican-gmo-corn-phase-out-a-concern-for-us-farmers-brownfield-ag-news.md) | +3.1% | +2.1% |
| CORN | 2023-07-20 | [Mexico continues to amend proposed GM corn ban - Brownfield Ag News](https://feedsoft.ai/events/35020-mexico-continues-to-amend-proposed-gm-corn-ban-brownfield-ag-news.md) | +9.4% | -7.2% |

## Sources

- brownfieldagnews.com: https://brownfieldagnews.com/news/ustr-addresses-fertilizer-tariffs-gmo-corn-ban-during-iowa-visit/

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Data from Feedsoft AI (https://feedsoft.ai/). For information only; not investment advice.