
A farmdoc daily analysis by Scott Irwin, dated December 17, 2020, examines South American corn and soybean yields in past La Niña years. It compares the USDA December forecasts for Brazil and Argentina with the current La Niña episode.
The study aims to determine whether trend yield expectations should be adjusted.
If past La Niña years show yield shortfalls in Brazil and Argentina, South American supply could tighten and support corn and soybean prices. The analysis is a research view, so the price impact depends on how it shapes trade expectations.
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%。
在过去 1,079 次看涨的天气事件之后,大豆 在 5 个交易日内中位数变动 +0.3%(54% 上涨;中间一半区间为 -1.4% 至 +2.0%),20 个交易日内为 +0.9%。
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。