# South American weather, quality issues could extend rally in grain markets - Brownfield Ag News

> Brazil's soybean harvest was about 16% complete, with reports of poor seed quality in Mato Grosso after excessive rain. Up to 30% of beans being harvested were moldy, broken, shriveled or high in moisture, and some elevators reportedly refused them. Dryness in Argentina added to concerns, and the Mato Grosso Institute of Agriculture was considering a lower production estimate.

- Date: 2026-02-06 · published 2026-02-06T12:00:00.000Z
- Category: weather · region Brazil · magnitude medium
- Page: https://feedsoft.ai/events/20643-south-american-weather-quality-issues-could-extend-rally-in-grain-markets
- Commodities: [Soybeans](https://feedsoft.ai/c/SOY.md), [Corn](https://feedsoft.ai/c/CORN.md)

## Why it matters

Quality losses and possible production cuts in Brazil, plus Argentine dryness, reduce available export supply and support soybean and meal prices.

## Read by commodity

- SOY: bullish ▲
- CORN: bullish ▲

## Similar past events

| Commodity | Date | Event | 5-day % | 20-day % |
| --- | --- | --- | --- | --- |
| SOY | 2024-02-09 | [Weather market for grains - Brownfield Ag News](https://feedsoft.ai/events/13206-weather-market-for-grains-brownfield-ag-news.md) | -2.6% | -1.9% |
| SOY | 2020-07-02 | [Soybeans, corn extend rally - Brownfield Ag News](https://feedsoft.ai/events/12774-soybeans-corn-extend-rally-brownfield-ag-news.md) | +0.5% | -0.2% |
| SOY | 2018-01-19 | [GRAIN MARKETS: Soybeans step higher on South American weather](https://feedsoft.ai/events/12099-grain-markets-soybeans-step-higher-on-south-american-weather.md) | +2.0% | +5.3% |
| SOY | 2022-12-07 | [Soybeans, meal extend gains, with corn, wheat higher - Brownfield Ag News](https://feedsoft.ai/events/38367-soybeans-meal-extend-gains-with-corn-wheat-higher-brownfield-ag-news.md) | +1.7% | +0.8% |
| SOY | 2021-08-24 | [Dry weather risk for 2021/22 South American crops: Grain market daily \| AHDB](https://feedsoft.ai/events/45430-dry-weather-risk-for-2021-22-south-american-crops-grain-market-daily-ahdb.md) | +0.8% | -1.5% |
| CORN | 2024-02-09 | [Weather market for grains - Brownfield Ag News](https://feedsoft.ai/events/13206-weather-market-for-grains-brownfield-ag-news.md) | -2.2% | +2.9% |
| CORN | 2020-07-02 | [Soybeans, corn extend rally - Brownfield Ag News](https://feedsoft.ai/events/12774-soybeans-corn-extend-rally-brownfield-ag-news.md) | +0.9% | -6.0% |
| CORN | 2022-12-07 | [Soybeans, meal extend gains, with corn, wheat higher - Brownfield Ag News](https://feedsoft.ai/events/38367-soybeans-meal-extend-gains-with-corn-wheat-higher-brownfield-ag-news.md) | +1.6% | +3.5% |

## Sources

- brownfieldagnews.com: https://www.brownfieldagnews.com/news/south-american-weather-quality-issues-could-extend-rally-in-grain-markets/

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