Like many other countries that import soybeans, South Korea is hoping to become more self-sufficient in this oilseed. However, hope runs straight into the limits of geography. Right now the country produces about 9 percent of the 1.44 MMT of soybeans it consumes. Its agricultural area of 1.698 Mha cannot be expanded and nearly half of it is currently used to produce another very important staple in the diet, rice.  South Korea could increase soybean yields, which are about half the U.S. level. But the government cannot hit its target for self-sufficiency in soybeans unless something else does not get planted. ...