Each Memorial Day holiday marks the beginning of the U.S. summer growing season for spring-planted crops, and there are several observations related to certain trends that are worth noting at this time.Each Memorial Day holiday is considered the unofficial start of summer, a season that does not actually commence for another three weeks. It also marks the beginning of the U.S. summer growing season for spring-planted crops. USDA will celebrate this by releasing its first weekly crop conditions on the 2017 corn crop despite simultaneously reporting that around 10 percent of the crop remained to be planted as of 28 May. In addition, it will provide its first weekly crop condition report for spring wheat later this afternoon.USDA will also rep...