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NASA describes how its satellite imagery and model forecasts help agencies monitor crop performance and prepare for food shortages. The article highlights southern Africa, where drought persists from the 2018-2019 maize season and puts millions at risk of famine.
The piece is background on drought monitoring rather than a new supply event, so it has little direct price impact on feed markets.
science.nasa.govNASA Science Editorial Team2019年7月1日在过去 445 次中性的天气事件之后，玉米 在 5 个交易日内中位数变动 +0.1%（52% 上涨；中间一半区间为 -1.4% 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。
