Corn, Soy Jump Most in More Than Year as Heat Hurts Crops

``Corn jumped the most in 14 months and soybean futures rallied the most since 2011 as hot, dry Midwest weather threatens to erode crop yields in the U.S., the world's biggest grower. Wheat also advanced... "The weather is cooking the crop that the Pro Farmer tour already said was smaller than expected," Mark Schultz, the chief analyst for Northstar Commodity Investment Co., said ''