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1_______. The United States export most of the corn produced. 2_______. They use corn mainly for livestock feed.
3___________. The increases in yields are obtained by the development of new high-yielding hybrids, by improved cultural practices and by application of proper amount of fertilizers.
Most corn, about 85%, is used as livestock feed and only about 10% is used as food for people. 4___________.
Corn production in the USA makes up more than half of the total world production.
The main importers are Western Europe and Japan.
Corn production is concentrated in the region named Corn Belt, where 80% of corn is grown.
Corn is also used as an industrial crop.