Export Sales for July 22-28, 2022   Wheat: Net sales of 249,900 metric tons (MT) for 2022/2023 were down 39 percent from the previous week and 55 percent from the prior 4-week average.   Corn: Net sales of 57,900 MT for 2021/2022 were down 62 percent from the previous week, but up 31 percent from the prior 4-week average Soybeans: Net sales reductions of 11,000 MT for 2021/2022 were down 81 percent from the previous week and 90 percent from the prior 4-week average.  Soybean Cake and Meal: Net sales of 186,600 MT for 2021/2022 were up noticeably from the previous week and from the prior 4-week average.  Soybean Oil: Total net sales of 1,300 MT for 2021/2022 were down 71 percent from the previous week and 1...