Wheat:  Net sales of 219,200 metric tons (MT) for 2020/2021 were up 31 percent from the previous week, but down 51 percent from the prior 4-week average.   Corn:  Net sales of 115,900 MT for 2020/2021--a marketing-year low--were down 74 percent from the previous week and 96 percent from the prior 4-week average.   Soybeans:   Net sales of 334,000 MT for 2020/2021 were up noticeably from the previous week, but down 33 percent from the prior 4-week average. Soybean Cake and Meal:   Net sales of 187,400 MT for 2020/2021 were up 17 percent from the previous week, but down 28 percent from the prior 4-week average.  Soybean Oil:   Net sales of 5,500 MT for 2020/2021 were up 25 p...