Export Sales for March 18-24, 2022.   Wheat:  Net sales of 95,000 metric tons (MT) for 2021/2022 were down 39 percent from the previous week and 58 percent from the prior 4-week average.    Corn:  Net sales of 636,900 MT for 2021/2022 were down 35 percent from the previous week and 53 percent from the prior 4-week average.   Soybeans:  Net sales of 1,305,800 MT for 2021/2022 were up noticeably from the previous week and up 11 percent from the prior 4-week average. Soybean Cake and Meal:  Net sales of 103,000 MT for 2021/2022 were down 61 percent from the previous week and 50 percent from the prior 4-week average. Soybean Oil:  Net sales of 30,900 MT for 2021/2022 were up noticeably...