# 2026/27 Planting in South America

> Brazilian farmers had planted 0.3% of their first corn crop by late the prior week, versus 1.6% a year earlier, with wet conditions slowing planting especially in Rio Grande do Sul. Argentina's sunflower planting was 11.5% complete against a 6.9% average, and the Rosario Grain Exchange expects Argentine corn acreage to fall 5.4% in 2026/27.

- Date: 2026-08-17 · published 2026-08-17T12:00:00.000Z
- Category: weather · region South America · magnitude low
- Page: https://feedsoft.ai/events/13421-2026-27-planting-in-south-america
- Commodities: [Corn](https://feedsoft.ai/c/CORN.md), [Sunflower Meal](https://feedsoft.ai/c/SUNMEAL.md)

## Why it matters

Slow Brazilian first-crop corn planting and a smaller expected Argentine corn area tighten near-term export supply, supporting corn prices. Sunflower planting is ahead of normal, which is a minor offset for sunflower meal.

## Read by commodity

- CORN: bullish ▲
- SUNMEAL: neutral

## Similar past events

| Commodity | Date | Event | 5-day % | 20-day % |
| --- | --- | --- | --- | --- |
| CORN | 2022-09-30 | [Planting season underway in South America](https://feedsoft.ai/events/13700-planting-season-underway-in-south-america.md) | +1.0% | +3.8% |
| CORN | 2020-04-29 | [South America Calling](https://feedsoft.ai/events/53471-south-america-calling.md) | +2.5% | +2.3% |
| CORN | 2025-03-28 | [South America Calling](https://feedsoft.ai/events/13506-south-america-calling.md) | +0.5% | +5.5% |
| CORN | 2023-09-21 | [South America Calling](https://feedsoft.ai/events/13623-south-america-calling.md) | -0.2% | +0.5% |
| CORN | 2019-10-04 | [A Slow Start for Planting in South America \| Red River Farm Network](https://feedsoft.ai/events/56406-a-slow-start-for-planting-in-south-america-red-river-farm-network.md) | +0.3% | +0.2% |

## Sources

- soybeanandcorn.com: https://www.soybeanandcorn.com/articles/10505/

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