Wheat:  Net sales of 528,500 metric tons (MT) for 2020/2021 were unchanged from the previous week, but up 23 percent from the prior 4-week average.  Corn:  Net sales of 655,200 MT for 2020/2021 were down 47 percent from the previous week and 63 percent from the prior 4-week average.  Soybeans:  Net sales of 2,631,300 MT for 2020/2021were up 2 percent from the previous week, but down 2 percent from the prior 4-week average.  Soybean Cake and Meal:  Net sales of 152,200 MT for 2020/2021, primarily for Ecuador (37,200 MT, including 30,000 MT switched from unknown destinations), Canada (32,300 MT, including decreases of 600 MT), Morocco (31,200 MT), Colombia (25,500 MT), and Venezuela (20,000 MT), were offs...