以下是3月份公布的美国玉米供需平衡表
                   2017/18 2018/19估计值. 2019/20预测值. 2019/20预测值. 
                                          2月            3月            
百万英亩
播种面积           90.2    88.9           89.7           89.7           
收获面积           82.7    81.3           81.5           81.5           
蒲式耳
每英亩收获产量     176.6   176.4          168            168            
百万蒲式耳
期初库存           2293    2140           2221           2221           
产量               14609   14340          13692          13692          
进口量             36      28             50             50             
总供应量           16939   16509          15962          15962          
饲料用量           5304    5430           5525           5525           
食品、种子及工业用 7057    6793           6820           6820           
燃料酒精用量       5605    5378           5425           5425           
国内总用量         12361   12223          12345          12345          
出口量             2438    2065           1725           1725           
总消耗量           14798   14288          14070          14070          
期末库存           2140    2221           1892           1892           
农场平均价格       3.36    3.61           3.85           3.8