The reason why Americans grow so much rice is because of foreign exchange demand. The international price of rice is very high, and it is very profitable in terms of production cost. Moreover, it has a vast area, which is very suitable for rice growth and can provide employment rate, so there is so much rice output for export. So rice and soybeans are one of the main sources of foreign exchange for Americans. Our country imports a large proportion of rice and soybeans from the United States. Soybeans are basically American products and are genetically modified soybeans.