Bloomberg: Wheat prices fell on speculation rains will improve depleted soil moisture for dormant winter crops in the U.S., the world’s largest exporter of the grain, Warmer, wet weather will develop next month that may help boost soil moisture for crops that will begin growing in late February in the Great Plains, said Jim Rouiller, a senior meteorologist for Planalytics Inc. in Wayne, Pennsylvania. Two storms with as much as 0.5 inch (1.3 centimeters) of rain next week may be the start of a …