50 Modern Business Geography G. The world’s rice crop. What are the three greatest rice-producing countries? What conditions favor such heavy production ? How do you account for the fact that com- paratively little rice is grown outside of southeastern Asia? 1. 2 Rice in the United States. Where is the rice belt of the United States? ‘Fig. 33.) in this belt, what conditions of (a) relief, (b) rainfall, (¢) temperature, and (d) soil favor the growing of rice? Louisiana rice needs 45 inches of water dur- ing its growing season. The warm wet winds from the Gulf of Mexico bring enough rain to supply 20 inches of water. How is the rest obtained » In the United States the rice fields are plowed and harrowed in the spring by big machines like those used in the wheat belt. After the water is drawn off in the fall, the fields are harvested and the rice is threshed with machines resembling those used in harvesting wheat. Why do we not sell such machines to Oriental rice growers? The American rice grower is paid perhaps twenty times as much for his labor as is the Oriental laborer. But by the aid of machinery one American can take care of about 80 acres of rice, while one Oriental cares for 2 acres. What do you think as to the possibility of raising rice in the United States to export to Asia? 3 Fig. 46. The barley stalk is stiffer than the wheat stalk and has fewer grains and longer straws. Like oats and rye, it lacks the gluten that makes wheat bread light, and is much used for bread only where wheat is too costly. 3 The barley crop. Barley is so hardy that it is a winter crop in Mediterranean countries and a summer crop in regions that extend into the frigid zone. Barley and wheat dovetail like corn and oats, for they require attention from the Farmers at different times. Hence we find much barley grown in the wheat lands, especially in the cooler and drier parts (Figs. 28, 44). In 1919 California, South Dakota, Minnesota, North Dakota, and Wisconsin were the leading barley states. Which of these lie in the cooler parts of the wheat lands? the drier parts? Compare the regions of heavy production of barley and of wheat shown in Europe (Figs. 38, 45). Barley can be grown on poorer soil than wheat. In some parts of our wheat region, farmers who once specialized in wheat now grow barley. What may have happened to cause these farmers to change their crop?