以下是8月份公布的美国玉米供需平衡表
                   2018/19 2019/20估计值. 2020/21预测值. 2020/21预测值. 
                                          7月            8月            
百万英亩
播种面积           88.9    89.7           92.0 *         92             
收获面积           81.3    81.3           84.0 *         84             
蒲式耳
每英亩收获产量     176.4   167.4          178.5 *        181.8          
百万蒲式耳
期初库存           2140    2221           2248           2228           
产量               14340   13617          15000          15278          
进口量             28      45             25             25             
总供应量           16509   15883          17273          17531          
饲料用量           5429    5600           5850           5925           
食品、种子及工业用 6793    6260           6625           6625           
燃料酒精用量       5378    4850           5200           5200           
国内总用量         12222   11860          12475          12550          
出口量             2066    1795           2150           2225           
总消耗量           14288   13655          14625          14775          
期末库存           2221    2228           2648           2756           
农场平均价格       3.61    3.6            3.35           3.1