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A Stanford-led study published in Nature Food finds U.S. corn yields have risen but have become more sensitive to drought, especially in soils with lower moisture-holding capacity. The researchers argue that technology gains are offset by growing losses in bad years.
Growing drought sensitivity raises the risk premium for future crops, which can support corn prices during dry seasons, though the study has no immediate supply effect.
sustainability.stanford.eduStanford Doerr Admin2020年10月26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%。
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。
