库存是生产和消费的集中反映。一般来说，当年库存增加，次年的市场价格就会下降，反之则上涨。我国多年的生产和消费实践也反映了这样一种现实。特别是１９９８年以来，由于玉米的产量持续增长，而同期的消费水平又没有跟上，所以造成了市场价格的连续２０几个月降低。 但是这 Stock is a concentrated reflection of production and consumption. In general, when inventory increases in the current year, the market price of the following year will fall, and vice versa. Our years of production and consumption practices also reflect such a reality. Especially since 1998, due to the continuous growth of corn production, while the consumption level has not kept pace with the same period, the market price has been reduced for 20 successive months. But this