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USDA Economic Research Service published a report on drought-tolerant corn, noting that GE and non-GE drought-tolerant varieties became widely available between 2011 and 2013. By 2016, 22 percent of US corn acreage was planted to drought-tolerant varieties, concentrated in drought-prone regions.
Wider adoption of drought-tolerant hybrids moderates yield volatility in dry years, a slightly bearish structural factor for corn risk premium, though the effect is gradual.
ers.usda.govUSDA (.gov)2019年4月1日在过去 770 次中性的报告事件之后，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 -1.1% 至 +1.6%），20 个交易日内为 +0.7%。
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。
