Wheat:  Net sales of 438,300 metric tons for 2018/2019 were down 34 percent from the previous week and 18 percent from the prior 4-week average.      Corn:    Net sales of 892,500 MT for 2018/2019 were up 27 percent from the previous week and 95 percent from the prior 4-week average.    Soybeans:    Net sales of 470,400 MT for 2018/2019 were up 47 percent from the previous week and 54 percent from the prior 4-week average.    Soybean Cake and Meal:    Net sales of 432,300 MT for 2018/2019 were reported for the Dominican Republic (91,300 MT), Poland (50,000 MT), Vietnam (46,400 MT), Japan (38,100 MT), and Italy (31,900 MT).  Reductions were for unkno...