Export Sales for February 25-March 3, 2022.   Wheat:  Net sales of 307,200 metric tons (MT) for 2021/2022 were up 2 percent from the previous week and 21 percent from the prior 4-week average.   Corn:  Net sales of 2,143,700 MT for 2021/2022--a marketing-year high--were up noticeably from the previous week and from the prior 4-week average. Soybeans:  Net sales of 2,204,300 MT for 2021/2022 were up noticeably from the previous week and up 76 percent from the prior 4-week average.  Soybean Cake and Meal:  Net sales of 316,100 MT for 2021/2022 were up noticeably from the previous week and up 49 percent from the prior 4-week average. Soybean Oil:  Net sales of 16,600 MT for 2021/2022 were...