North Dakota produces about half of the U.S. spring wheat.

北达科他州的春小麦产量约占美国春小麦总产量的一半。

There are two wheat crops in the United States: spring wheat and winter wheat.

春小麦和冬小麦。

The U.S. Department of Agriculture says farmers have only planted 49 percent of planned spring wheat as of May 22.

美国农业部表示，截至5月22日，农民只种植了春小麦计划种植面积的49%。