Wheat:  Net sales of 612,000 metric tons were reported for delivery in marketing year 2019/2020.   Corn:  Net sales of 294,900 MT for 2018/2019 were up noticeably from the previous week and up 7 percent from the prior 4-week average.  Soybeans:  Net sales of 168,200 MT for 2018/2019 were down 71 percent from the previous week and 61 percent from the prior 4-week average.  Soybean Cake and Meal:    Net sales of 28,700 MT for 2018/2019--a marketing-year low--were down 74 percent from the previous week and 78 percent from the prior 4-week average.   Soybean Oil:   Net sales of 19,200 MT for 2018/2019 were up noticeably from the previous week and up 28 percent from the prior 4...