内布拉斯加州全州10月玉米预估产量18.1亿蒲式耳 单产188蒲式耳居五大产州唯一上调
2026年10月29日，美国农业部全国农业统计局10月玉米生产预估把内布拉斯加州推上了关注中心：该州玉米预估产量为18.1亿蒲式耳，比9月预估增加了6000万蒲式耳；单产预估为每英亩188蒲式耳，比9月提高了6.0蒲式耳。内布拉斯加州是美国前五大玉米生产州中唯一一个10月单产预估高于9月的州。
这一上调引发了讨论，因为该州经历了异常温暖的夜晚：2026年7月、8月和9月，全州夜间最低气温平均比正常水平高4至9华氏度，其中9月在多数粮食产区高出9至12华氏度。内布拉斯加大学林肯分校推广农业气候学家埃里克·亨特指出，该州在玉米授粉和籽粒灌浆前期遭遇干旱，同时夜间温暖程度创下纪录；截至7月底，全州约62%的地区处于严重干旱。
亨特认为，内布拉斯加州的玉米单产在最终预估完成前很可能被下调，更接近每英亩180蒲式耳而非188蒲式耳。随着全美玉米收获进入后半程，内布拉斯加州的产量数字成为观察今年玉米收成的重要案例。
Nebraska's October Corn Forecast Rises to 1.81 Billion Bushels at 188 Bushels per Acre, the Only Increase Among the Top Five Producing States
On October 29, 2026, the October corn production forecast from the U.S. Department of Agriculture's National Agricultural Statistics Service put Nebraska at the center of attention: the state's corn production is forecast at 1.81 billion bushels, up 60 million bushels from the September forecast, with yield forecast at 188 bushels per acre, up 6.0 bushels from September. Nebraska was the only one of the top five U.S. corn-producing states whose October yield forecast was higher than its September forecast.
The upward revision drew discussion because the state experienced unusually warm nights: in July, August and September 2026, average nighttime minimum temperatures statewide ran 4 to 9 degrees Fahrenheit above normal, with September running 9 to 12 degrees above normal across most grain-producing areas. Eric Hunt, an extension agricultural climatologist at the University of Nebraska-Lincoln, noted that the state faced drought during corn pollination and early grain fill while overnight warmth set records; by the end of July, about 62 percent of the state was in severe drought.
Hunt believes Nebraska's corn yield will very likely be revised downward before the final forecast is complete, landing closer to 180 bushels per acre than 188. As the U.S. corn harvest moves through its second half, Nebraska's production numbers have become an important case for watching this year's corn crop.
来源：GSM·美国（原文链接）
图片来源：内布拉斯加州南部的玉米田 / Corn fields in southern Nebraska. Photo: Ryan Peters, CC BY-SA 3.0, via Wikimedia Commons.
