Much of grain sorghum's sudden rise in China is due to government policies, announced or not, designed to protect the price of domestic corn production.If one were to poll U.S. urban dwellers on the important field crops produced by American farmers, most would probably name corn and wheat. A number of others would also cite soybeans. However, we doubt that very many would add grain sorghum to the list. In fact, we don't' believe that very many have ever heard of that crop. Grain sorghum production in the U.S. and the world typically attracts little, if any, public attention. Generically, it is put in the category of "minor feed grains" along with barley and oats. In terms of 2014 harvested crop acreage in the U.S., grain sorghum ranks sixt...