CBOT Called Steady to Lower on Improved South and North American Weather; Phase 1 US/China Trade Progress Adds Support

** AgResource Pre-Opening Calls: Soybeans 1 cent higher to 2 cents lower, corn steady to 1 cent lower with wheat called 1 cent lower to 1 cent higher. ** Weekend Weather & CBOT Market Discussion: Opening week CBOT price calls are mixed to slightly lower. US President Trump on Saturday offered Iowa as a signing…