Wal-Mart joins U.S. crop-tour fever seeking food chain edge
September 10, 2014 at 13:12 PM EDT
CHICAGO, Sept 10 (Reuters) - Retail giant Wal-Mart joined a group of volunteers counting corn ears and soybean pods in fields in the United States recently in a clear sign traditional crop tours are expanding their appeal from farmers and traders to all those with a stake in the U.S. food chain.