以下是3月份公布的美国玉米供需平衡表
                   2019/20 2020/21估计值. 2021/22预测值. 2021/22预测值. 
                                          2月            3月            
百万英亩
播种面积           89.7    90.7           93.4           93.4           
收获面积           81.3    82.3           85.4           85.4           
蒲式耳
每英亩收获产量     167.5   171.4          177            177            
百万蒲式耳
期初库存           2221    1919           1235           1235           
产量               13620   14111          15115          15115          
进口量             42      24             25             25             
总供应量           15883   16055          16375          16375          
饲料用量           5900    5598           5650           5650           
食品、种子及工业用 6286    6470           6760           6785           
燃料酒精用量       4857    5033           5325           5350           
国内总用量         12186   12068          12410          12435          
出口量             1777    2753           2425           2500           
总消耗量           13963   14821          14835          14935          
期末库存           1919    1235           1540           1440           
农场平均价格       3.56    4.53           5.45           5.65