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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.
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.
soybeanandcorn.com2026年8月17日在过去 1,465 次看涨的天气事件之后，玉米 在 5 个交易日内中位数变动 +0.2%（54% 上涨；中间一半区间为 -1.4% 至 +1.9%），20 个交易日内为 +0.9%。
历史可比事件尚不足，暂无法给出历史解读。
各商品基准价相对事件前最后收盘价的变动。历史数据汇总同类过往事件；仅描述已发生的情况，不代表未来走势。不构成投资建议。
